Revision as of 15:47, 28 February 2007 view sourceKellen (talk | contribs)Extended confirmed users3,308 edits revert changes to intro; we DO NOT want a giant list of animal products there, fix citation to be a journal one, reword to be less essayish.← Previous edit | Revision as of 17:32, 28 February 2007 view source Nomenclator (talk | contribs)Extended confirmed users881 edits changed abstains to doesn't use and made subtle changes to descriptions of items not usedNext edit → | ||
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], registered in 1944]] | ], registered in 1944]] | ||
'''Veganism''' (also known as '''strict ]''' or '''pure vegetarianism'''), as defined by the ], is "a ] and way of living which seeks to exclude…all forms of exploitation of, and cruelty to, animals for food, clothing or any other purpose."<ref name="veganukmission">{{cite web |url=http://www.vegansociety.com/html/downloads/ArticlesofAssociation.pdf |title=MEMORANDUM OF ASSOCIATION OF THE VEGAN SOCIETY |accessdate=2007-02-22 |pages=1 |date=] |work=About Us |publisher=] }}</ref> A '''''vegan''''' (one who practices veganism) |
'''Veganism''' (also known as '''strict ]''' or '''pure vegetarianism'''), as defined by the ], is "a ] and way of living which seeks to exclude…all forms of exploitation of, and cruelty to, animals for food, clothing or any other purpose."<ref name="veganukmission">{{cite web |url=http://www.vegansociety.com/html/downloads/ArticlesofAssociation.pdf |title=MEMORANDUM OF ASSOCIATION OF THE VEGAN SOCIETY |accessdate=2007-02-22 |pages=1 |date=] |work=About Us |publisher=] }}</ref> A '''''vegan''''' (one who practices veganism) doesn't use ]s, such as the flesh and organs of animals, their eggs, animal secretions such as dairy products, and products made from animal bones, hooves, skins or furs.<ref name="foodcriteria">{{cite web |url=http://www.vegansociety.com/html/food/criteria.php |title=Criteria for Vegan food |accessdate=2007-02-17 |publisher= ] }}</ref> People become vegans for a variety of reasons, including ethical concerns for animal rights or the environment, as well as more personal reasons such as perceived health benefits and spiritual or religious concerns.<ref name="Timepoll">{{cite web |url=http://www.time.com/time/covers/1101020715/poll/ |title=Time/CNN Poll: Do you consider yourself a vegetarian? |accessdate=2006-10-30 |date=2002-07-07 |work=Time Magazine }}</ref><ref name="Food Standards Agency">{{cite web| url=http://www.food.gov.uk/multimedia/pdfs/ndnsprintedreport.pdf| title = Types and quantities of food consumed: Vegetarian/vegan| accessdate = 2006-10-30|format=PDF|pages=11, 23 |work = National Diet & Nutrition Survey: Adults aged 19 to 64, Volume 1 2002|publisher=Food Standards Agency}}</ref> | ||
A ] ]/] ], found that 4% of ] adults consider themselves ], and 5% of self-described vegetarians consider themselves vegans.<ref name="Timepoll"/> This suggests that 0.2% of American adults are vegans. Also in 2002, the UK Food Standards Agency reported that 5% of respondents self-identified as vegetarian or vegan. Though 29% of that 5% said they avoided "all animal products" only 5% reported avoiding dairy.<ref name="Food Standards Agency"/> Based on these figures, approximately 0.25% of the UK population follow a vegan diet. In 2005, '']'' estimated there were 250,000 vegans in Britain, which suggests around 0.4% of the UK population is vegan.<ref name="London Times">{{cite web |url=http://www.timesonline.co.uk/article/0,,60-1914862,00.html |title=Donald Watson |accessdate=2006-09-15 |date=] |work=Times Online |publisher=Times Newspapers Ltd. }}</ref> | A ] ]/] ], found that 4% of ] adults consider themselves ], and 5% of self-described vegetarians consider themselves vegans.<ref name="Timepoll"/> This suggests that 0.2% of American adults are vegans. Also in 2002, the UK Food Standards Agency reported that 5% of respondents self-identified as vegetarian or vegan. Though 29% of that 5% said they avoided "all animal products" only 5% reported avoiding dairy.<ref name="Food Standards Agency"/> Based on these figures, approximately 0.25% of the UK population follow a vegan diet. In 2005, '']'' estimated there were 250,000 vegans in Britain, which suggests around 0.4% of the UK population is vegan.<ref name="London Times">{{cite web |url=http://www.timesonline.co.uk/article/0,,60-1914862,00.html |title=Donald Watson |accessdate=2006-09-15 |date=] |work=Times Online |publisher=Times Newspapers Ltd. }}</ref> | ||
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The term "]" in a vegan context refers to material derived from non-human animals for human use or consumption. Human ] for example is acceptable when voluntarily used for human babies, but by comparison when a human being drinks a ]'s milk, it is regarded as the consumption of an "animal product." Animal products include ], ], ], ]s, ]s, ], ], ], ]s, and ] (mother of pearl), among other things. By-products include ], ], ], and ]. Items derived from ]s include items such as ], ], ], ] and ]. | The term "]" in a vegan context refers to material derived from non-human animals for human use or consumption. Human ] for example is acceptable when voluntarily used for human babies, but by comparison when a human being drinks a ]'s milk, it is regarded as the consumption of an "animal product." Animal products include ], ], ], ]s, ]s, ], ], ], ]s, and ] (mother of pearl), among other things. By-products include ], ], ], and ]. Items derived from ]s include items such as ], ], ], ] and ]. | ||
Some vegans avoid ] that has been filtered with ] and will not drink ] or ] clarified with ], animal blood, or ], because though these are not present in the final product, they are still used in the process. However, the group ] argues that the rejection of these items because of the process by which they were obtained misses the point of veganism<ref> Vegan Outreach FAQ.</ref>. Vegans also avoid alcohol that contains or is "smoothened" using animal glycerine. Some also avoid food cooked with equipment that has been used to cook non-vegan foods. Vegans also avoid ] with ] extracted from animal bones, if they are aware of it. Similarly, ] |
Some vegans avoid ] that has been filtered with ] and will not drink ] or ] clarified with ], animal blood, or ], because though these are not present in the final product, they are still used in the process. However, the group ] argues that the rejection of these items because of the process by which they were obtained misses the point of veganism<ref> Vegan Outreach FAQ.</ref>. Vegans also avoid alcohol that contains or is "smoothened" using animal glycerine. Some also avoid food cooked with equipment that has been used to cook non-vegan foods. Vegans also avoid ] with ] extracted from animal bones, if they are aware of it. Similarly, ] made from animal fat rather than vegetable fats, is avoided.<ref>{{cite web |url=http://shakahara.com/soap3.html|title=Soap: Is it animal, vegetable, or mineral}}</ref> | ||
Most vegans refrain from supporting industries that use animals directly or indirectly, such as ]es, ]s, and ]s, and will not use products that are ].<ref name="foodcriteria"/> | Most vegans refrain from supporting industries that use animals directly or indirectly, such as ]es, ]s, and ]s, and will not use products that are ].<ref name="foodcriteria"/> | ||
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==Motivations== | ==Motivations== | ||
In addition to the ethics of avoiding exploitation of animals and cruelty to animals, there are other things that motivate people to go vegan. These include opinions about the esthetics of animal slaughter and butchery, especially the opinion that such activities are "ugly," or that slaughterhouses are "unpleasant neighbors;" health advantages, both proven, and presumed or believed; effects on natural resources and the environment; and spiritual reasons such as facilitating union or yoking with the one, such as are found in Jainism, Hinduism, and Buddhism, and in some personal beliefs. | |||
⚫ | == |
||
⚫ | == Ethics of Veganism == | ||
{{seealso|Ethics of eating meat}} | {{seealso|Ethics of eating meat}} | ||
]s) in a ]. Opposition to factory farming is one of the most common ethical reasons given for veganism.<ref name="factoryfarming">{{cite web |url=http://www.veganoutreach.org/whyvegan/animals.html |title=Factory Farms |accessdate=2006-09-15 |work=Why Vegan |publisher=Vegan Outreach}}</ref>]] | ]s) in a ]. Opposition to factory farming is one of the most common ethical reasons given for veganism.<ref name="factoryfarming">{{cite web |url=http://www.veganoutreach.org/whyvegan/animals.html |title=Factory Farms |accessdate=2006-09-15 |work=Why Vegan |publisher=Vegan Outreach}}</ref>]] | ||
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Some ] philosophers, such as ] and ], argue that the suffering of ] animals is relevant to ethical decisions, though they do not rely on the concept of ]s and believe that non-human animals only have an interest in not suffering. Others like ], believe that all sentient beings have an interest in both not suffering and continuing to live. A common argument is that animals have the ability to feel pleasure so killing them is wrong, because it destroys any hope of future pleasure. He claims that it is therefore unethical to treat them as property or a means to an end (see ]). Although these theories draw similar conclusions, they are not wholly compatible with one another. | Some ] philosophers, such as ] and ], argue that the suffering of ] animals is relevant to ethical decisions, though they do not rely on the concept of ]s and believe that non-human animals only have an interest in not suffering. Others like ], believe that all sentient beings have an interest in both not suffering and continuing to live. A common argument is that animals have the ability to feel pleasure so killing them is wrong, because it destroys any hope of future pleasure. He claims that it is therefore unethical to treat them as property or a means to an end (see ]). Although these theories draw similar conclusions, they are not wholly compatible with one another. | ||
== |
== Health Aspects of Vegan Diet == | ||
⚫ | {{main|Vegan nutrition}} | ||
] | ] | ||
=== Health Benefits of Vegan Diet === | |||
⚫ | Studies have strongly correlated a plant based diet with better health benefits than a meat heavy diet.<ref name="cornell china study">{{cite web| url = http://www.news.cornell.edu/Chronicle/01/6.28.01/China_Study_II.html| title = China Study II: Switch to Western diet may bring Western-type diseases| accessdate = 2006-09-15| last = Segelken| first = Roger| authorlink = Roger Segelken|date= ]| publisher = Cornell Chronicle}}</ref><ref name="corness nutrition">{{cite web| url = http://www.nutrition.cornell.edu/ChinaProject/| title = China-Cornell-Oxford Project On Nutrition, Environment and Health at Cornell University| accessdate = 2006-09-15| work = Division of Nutritional Sciences| publisher = Cornell University}}</ref><ref name="milkforcalcium">{{cite web| url = http://www.afpafitness.com/articles/MilkCal2.htm| title = Milk: Is it Really Our Best Source for Calcium?| accessdate = 2006-09-15| last = Henry| first = Susan O.| publisher = Americal Fitness Professionals & Associates}}</ref> |
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The American Dietetic Association and Dietitians of Canada state that "''well-planned vegan and other types of vegetarian diets are appropriate for all stages of the life cycle, including during pregnancy, lactation, infancy, childhood, and adolescence.''"<ref name="adajournal">{{cite journal | year = 2003 | month = June | title = Position of the American Dietetic Association and Dietitians of Canada: Vegetarian diets | journal = Journal of the American Dietetic Association | volume = 103 | issue = 6 | pages = 748-765 | doi = 10.1053/jada.2003.50142 | url=http://www.adajournal.org/article/PIIS0002822303002943/fulltext | accessdate = 2006-09-15 }}</ref> | The American Dietetic Association and Dietitians of Canada state that "''well-planned vegan and other types of vegetarian diets are appropriate for all stages of the life cycle, including during pregnancy, lactation, infancy, childhood, and adolescence.''"<ref name="adajournal">{{cite journal | year = 2003 | month = June | title = Position of the American Dietetic Association and Dietitians of Canada: Vegetarian diets | journal = Journal of the American Dietetic Association | volume = 103 | issue = 6 | pages = 748-765 | doi = 10.1053/jada.2003.50142 | url=http://www.adajournal.org/article/PIIS0002822303002943/fulltext | accessdate = 2006-09-15 }}</ref> | ||
⚫ | Studies have strongly correlated a plant based diet with better health benefits than a meat heavy diet.<ref name="cornell china study">{{cite web| url = http://www.news.cornell.edu/Chronicle/01/6.28.01/China_Study_II.html| title = China Study II: Switch to Western diet may bring Western-type diseases| accessdate = 2006-09-15| last = Segelken| first = Roger| authorlink = Roger Segelken|date= ]| publisher = Cornell Chronicle}}</ref><ref name="corness nutrition">{{cite web| url = http://www.nutrition.cornell.edu/ChinaProject/| title = China-Cornell-Oxford Project On Nutrition, Environment and Health at Cornell University| accessdate = 2006-09-15| work = Division of Nutritional Sciences| publisher = Cornell University}}</ref><ref name="milkforcalcium">{{cite web| url = http://www.afpafitness.com/articles/MilkCal2.htm| title = Milk: Is it Really Our Best Source for Calcium?| accessdate = 2006-09-15| last = Henry| first = Susan O.| publisher = Americal Fitness Professionals & Associates}}</ref> | ||
Vegan diets tend toward several nutritional benefits, including lower levels of saturated fat, no cholesterol, and higher levels of carbohydrates, fiber, magnesium, potassium, folate, antioxidant ] and ] and ]s.{{Fact|date=February 2007}} | Vegan diets tend toward several nutritional benefits, including lower levels of saturated fat, no cholesterol, and higher levels of carbohydrates, fiber, magnesium, potassium, folate, antioxidant ] and ] and ]s.{{Fact|date=February 2007}} | ||
Vegetarians have been reported to have lower body mass indices than nonvegetarians |
Vegetarians have been reported to have lower body mass indices than nonvegetarians. The ] says that one small scale study has observed that a vegan diet can reduce blood cholesterol in people with, and significantly reduce the complications of ].<ref name="diabetes">{{cite web| url = http://www.pcrm.org/health/clinres/diabetes.html| title = Diabetes: Can a Vegan Diet Reverse Diabetes?| accessdate = 2006-09-15| last = Nicholson| first = Andrew| authorlink = Andrew Nicholson|date= ]| publisher = Physicians Committee for Responsible Medicine}}</ref> | ||
===Dangers of Industry Livestock Practices=== | |||
⚫ | There are also claims that industry livestock feeding practices pose health threats to human consumers. According to Dr. Michael Greger in a January 2004 lecture at MIT (which is the basis for ''Whistleblower'', a 2007 documentary film by Jeff Bellamar) each year more than one million tons of animal excrement are fed back to farm animals raised for human consumption to lower the feed costs. He also says that up to 10% of blood from killed animals is mixed into some cattle feed, and up to 30% of some poultry feed is made up of the blood. ] (BSE), commonly known as mad cow disease, is believed to be caused by cows being fed with contaminated ], a high-protein substance obtained from the remnants of butchered animals, including cows and sheep. In most parts of the developed world, such remnants are no longer allowed in feed for ruminant animals, and the ] recommends a complete ban on ruminant-to-ruminant feeding, but the practice persists in a few countries. | ||
⚫ | === Vegan Athletes === | ||
There are a number of vegan athletes. Vegan athletes compete in a variety of sports, such as ], ], ], long distance ], and many others.<ref>{{cite web|url=http://www.organicathlete.org/index.php?option=com_content&task=category§ionid=7&id=37&Itemid=221|title=OrganicAthlete's Pro-Activist Team|accessdate=2006-10-30}}</ref><ref>{{cite web|url=http://veggie.org/veggie/famous.veg.athletes.shtml|title=Vegetarian and Vegan Famous Athletes|accessdate=2006-10-30}}</ref> Multiple ] gold medallist ] has stated that he became vegan in 1990 and achieved his "best year of track competition" when he ate a vegan diet.<ref>{{cite web|url=http://www.earthsave.org/lifestyle/carllewis.htm|title=Carl Lewis on Being Vegan|last=Lewis|first=Carl|accessdate=2006-10-30|work=Introduction to Very Vegetarian, by Jannequin Bennett}}</ref> | There are a number of vegan athletes. Vegan athletes compete in a variety of sports, such as ], ], ], long distance ], and many others.<ref>{{cite web|url=http://www.organicathlete.org/index.php?option=com_content&task=category§ionid=7&id=37&Itemid=221|title=OrganicAthlete's Pro-Activist Team|accessdate=2006-10-30}}</ref><ref>{{cite web|url=http://veggie.org/veggie/famous.veg.athletes.shtml|title=Vegetarian and Vegan Famous Athletes|accessdate=2006-10-30}}</ref> Multiple ] gold medallist ] has stated that he became vegan in 1990 and achieved his "best year of track competition" when he ate a vegan diet.<ref>{{cite web|url=http://www.earthsave.org/lifestyle/carllewis.htm|title=Carl Lewis on Being Vegan|last=Lewis|first=Carl|accessdate=2006-10-30|work=Introduction to Very Vegetarian, by Jannequin Bennett}}</ref> | ||
===Other Comparisons=== | |||
Some studies have found benefits associated with diets rich in whole plant foods, and risks associated with diets rich in animal-based foods. One of the researchers from the 1990 epidemiological study, "]," said "''Even small increases in the consumption of animal-based foods was associated with increased disease risk.''"<ref name="cornell china study">{{cite web| url = http://www.news.cornell.edu/Chronicle/01/6.28.01/China_Study_II.html| title = China Study II: Switch to Western diet may bring Western-type diseases| accessdate = 2006-09-15| last = Segelken| first = Roger| authorlink = Roger Segelken|date= ]| publisher = Cornell Chronicle}}</ref><ref name="corness nutrition">{{cite web| url = http://www.nutrition.cornell.edu/ChinaProject/| title = China-Cornell-Oxford Project On Nutrition, Environment and Health at Cornell University| accessdate = 2006-09-15| work = Division of Nutritional Sciences| publisher = Cornell University}}</ref> A |
Some studies have found benefits associated with diets rich in whole plant foods, and risks associated with diets rich in animal-based foods. One of the researchers from the 1990 epidemiological study, "]," said "''Even small increases in the consumption of animal-based foods was associated with increased disease risk.''"<ref name="cornell china study">{{cite web| url = http://www.news.cornell.edu/Chronicle/01/6.28.01/China_Study_II.html| title = China Study II: Switch to Western diet may bring Western-type diseases| accessdate = 2006-09-15| last = Segelken| first = Roger| authorlink = Roger Segelken|date= ]| publisher = Cornell Chronicle}}</ref><ref name="corness nutrition">{{cite web| url = http://www.nutrition.cornell.edu/ChinaProject/| title = China-Cornell-Oxford Project On Nutrition, Environment and Health at Cornell University| accessdate = 2006-09-15| work = Division of Nutritional Sciences| publisher = Cornell University}}</ref> A study in Spain includes the comment that "There is a growing body of evidence to show that consumption of fruit and vegetables may protect against development of CVD," and then goes on to provide more evidence.<ref>{{cite web |url=http://stroke.ahajournals.org/cgi/content/full/29/8/1556 | title=Relationship between fruit and vegetable consumption and decrease in CVD}}</ref> Conversely, studies in ] found that increased consumption of some animal products coincided with a decrease in risk for some forms of cerebrovascular disease and stroke mortality.<ref name="japan study">{{cite web| url = http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=10510585&dopt=Abstract| title = Possible protective effect of milk, meat and fish for cerebrovascular disease mortality in Japan.| accessdate = 2006-09-15| coauthors = Kinjo Y, Beral V, Akiba S, Key T, Mizuno S, Appleby P, Yamaguchi N, Watanabe S, Doll R|date= ]| publisher = Japan Epidemiological Association}}</ref> | ||
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=== Controversial Health Claims === | |||
⚫ | There are also claims that industry livestock feeding practices pose health threats to human consumers. According to Dr. Michael Greger in a January 2004 lecture at MIT (which is the basis for ''Whistleblower'', a 2007 documentary film by Jeff Bellamar) each year more than one million tons of animal excrement are fed back to farm animals raised for human consumption to lower the feed costs. He also says that up to 10% of blood from killed animals is mixed into some cattle feed, and up to 30% of some poultry feed is made up of the blood. ] (BSE), commonly known as mad cow disease, is believed to be caused by cows being fed with contaminated ], a high-protein substance obtained from the remnants of butchered animals, including cows and sheep. In most parts of the developed world, such remnants are no longer allowed in feed for ruminant animals, and the ] recommends a complete ban on ruminant-to-ruminant feeding, but the practice persists in a few countries. | ||
There are a number of controversial and unproven health claims that have been made for a vegan diet, that have been widely propogated, such as the claim that artificial substances such as ]s and ], which are often given to farmed animals, may be present in animal food products, and may be harmful.<ref name="bgh">{{cite web| url = http://www.ejnet.org/bgh/| title = Bovine Growth Hormone| accessdate = 2006-09-15| publisher = EJnet.org}}</ref><ref name="52nomilk">{{cite web| url = http://www.notmilk.com/52reasons.txt| title = 52 good reasons to abandon milk and dairy!| accessdate = 2006-09-15| last = Cohen| first = Robert| authorlink = Robert Cohen| format = ]| publisher = NOTmilk}}</ref><ref name="win by antibiotics">{{cite web| url = http://www.vegsource.com/how_to_win.htm#antibiotics| title = How To Win An Argument With a Meat-Eater| accessdate = 2006-09-15| publisher = VegSource Interactive, Inc.}}</ref><ref name="kradjian letter">{{cite web| url = http://www.afpafitness.com/articles/MILKDOC.HTM| title = THE MILK LETTER : A MESSAGE TO MY PATIENTS| accessdate = 2006-09-15| last = Kradjian| first = Robert| authorlink = Robert Kradjian| publisher = Americal Fitness Professionals & Associates}}</ref> While such claims may sound plausible, there doesn't seem to be enough scientific data to support them. | |||
===Health risks of Veganism === | |||
⚫ | |||
⚫ | Vegans are potentially at risk for being deficient in nutrients such as ],<ref name="B12veganhealth">{{cite web |url=http://www.veganhealth.org/articles/vitaminb12 |title=Vegan Health: Vitamin B12 |accessdate=2007-02-23 |date=2006-07-26 |work=veganhealth.org |publisher=] }}</ref> ],<ref name="calciumvitamindveganhealth">{{cite web |url=http://www.veganhealth.org/articles/bones |title=Vegan Health: Bone Health |accessdate=2007-02-23 |date=2007-01-09 |work=veganhealth.org |publisher=] }}</ref> ],<ref name="ejcnveganfracture">{{cite journal |author=P Appleby |coauthors=A Roddam, N Allen and T Key |year=2007 |month=02 |title=Comparative fracture risk in vegetarians and nonvegetarians in EPIC-Oxford |journal=] |volume= |issue= |pages= |pmid=17299475 |doi=10.1038/sj.ejcn.1602659 |url=http://www.nature.com/ejcn/journal/vaop/ncurrent/full/1602659a.html |accessdate=2007-02-25 }}</ref><ref name="calciumvitamindveganhealth"/> ]<ref name="iodineveganhealth">{{cite web |url=http://www.veganhealth.org/articles/iodine |title=Vegan Health: Iodine |accessdate=2007-02-23 |date=2006-12-26 |work=veganhealth.org |publisher=] }}</ref> and ]s.<ref name="omega3veganhealth">{{cite web |url=http://www.veganhealth.org/articles/fat |title=Vegan Health: Fat |accessdate=2007-02-23 |date=2007-02-20 |work=veganhealth.org |publisher=] }}</ref> These deficiencies can have potentially serious consequences, including ],<ref name="b12vegansociety">{{cite web |url=http://www.vegansociety.com/html/food/nutrition/b12/ |title=What every vegan should know about vitamin B12 |accessdate=2007-02-22 |publisher=] |quote=Vitamin B12, whether in supplements, fortified foods, or animal products, comes from micro-organisms. }}</ref> ]<ref name="vitaminDvegansociety">{{cite web |url=http://www.vegansociety.com/html/food/nutrition/vitaminD.php |title=Vegans and Vitamin D |accessdate=2007-02-22 |publisher=] }}</ref> and ]<ref name="iodinevegansociety">{{cite web |url=http://www.vegansociety.com/html/food/nutrition/iodine.php |title=Nutrition: Iodine |accessdate=2007-02-23 |author=Steven Walsh |publisher=] }}</ref> in children, and ]<ref name="vitaminDvegansociety"/> and ]<ref name="iodinevegansociety"/> in adults. Supplementation, particularly for vitamin B12, is highly recommended for vegans.<ref>{{cite web |url=http://www.vegansociety.com/html/food/nutrition/ |title=Healthy choices on a vegan diet |accessdate=2007-02-14 |publisher=]}}</ref> | ||
⚫ | {{main|Environmental vegetarianism}} | ||
===Vitamin B12 not found in plant products === | |||
⚫ | People who adopt a vegan diet to reduce resource consumption or ] extend the idea of ] to all animal products. The fundamental rationale is that each additional ] in a food chain passes on only a fraction of the energy it consumes, so a diet that consists of plant products rather than animal products will generally use significantly less of all resources, and indirectly cause less environmental damage. | ||
⚫ | Vitamin B12, a bacterial product, cannot be reliably found in plant foods.<ref name="healthyvegan"/><ref name="b12vegetariansociety">{{cite web |url=http://www.vegsoc.org/info/b12.html |title=Vitamin B12 Information Sheet |accessdate=2007-02-22 |date= |publisher=] |quote= is exclusively synthesised by bacteria and is found primarily in meat, eggs and dairy products. ... he present consensus is that any B12 present in plant foods is likely to be unavailable to humans and so these foods should not be relied upon as safe sources.}}</ref><ref name="b12vegansociety"/> While it may take one to five years to exhaust some individual's reserves of vitamin B12, many people do not have such reserves,<ref name="B12mythveganhealth">{{cite web |url=http://www.veganhealth.org/b12/often |title=Vegan Health: Myth about How Often Someone Needs B12 |accessdate=2007-01-02|date=2005-07-22 |work=Vitamin B12: Are You Getting It? |author=Jack Norris, RD |work=veganhealth.org |publisher=] }}</ref> and serious health consequences are a risk as a result of B12 deficiency.<ref>{{cite web |url=http://www.merck.com/mmhe/sec12/ch154/ch154j.html |title=Vitamin B12 (cobalamin) |accessdate=2006-10-30 |work=Merck Manual Home Edition}}</ref> Additionally, mild B12 deficiency can develop even with such reserves.<ref name="B12mythveganhealth"/> In a 2002 laboratory study, more of the strict vegan participants' B12 and iron levels were compromised than those of lacto- or lacto-ovo-vegetarian participants.<ref name="vegparameters">{{cite journal|author=Obeid R, Geisel J, Schorr H, Hubner U, Herrmann W.|title=The impact of vegetarianism on some haematological parameters|journal=Eur J Haematol. |year=2002|pages=275-9|volume=69|issue=5-6|id=PMID 12460231}}</ref> The ] and ], among others, recommend that vegans either consistently eat foods fortified with B12 or take a daily or weekly B12 supplement.<ref name="healthyvegan"/><ref name="b12vegetariansociety"/><ref name="b12vegansociety"/><ref name="b12vegetarianresourcegroup">{{cite web |url=http://www.vrg.org/nutrition/b12.htm |title=Vitamin B12 in the Vegan Diet |accessdate=2007-02-22 |author=Reed Mangels, Ph.D., R.D. |publisher= }}</ref><ref name="b12PCRM">{{cite web |url=http://www.pcrm.org/health/veginfo/b12.html |title=Don't Vegetarians Have Trouble Getting Enough Vitamin B12? |accessdate=2007-02-22 |publisher=] }}</ref> ], ], ], ] produce, soil on unwashed vegetables, and ] bacteria have not been shown to be reliable sources of B12 for the dietary needs of vegans.<ref name="b12plantsources">{{cite web |url=http://www.veganhealth.org/b12/plant |title=Vegan Health: B12 in Tempeh, Seaweeds, Organic Produce, and Other Plant Foods |accessdate=2007-02-22 |author=Jack Norris, RD |work=veganhealth.org |publisher=] }}</ref><ref name="b12intestine">{{cite web |url=http://www.veganhealth.org/b12/int |title=Vegan Health: Are Intestinal Bacteria a Reliable Source of B12? |accessdate=2007-02-22 |author=Jack Norris, RD |work=veganhealth.org |publisher=] }}</ref> | ||
⚫ | Severe and permanent neurological damage to infants can be caused when mothers do not obtain adequate ] in their diet while breastfeeding.<ref>{{cite journal | author=Kuhne T, Bubl R, Baumgartner R | title=Maternal vegan diet causing a serious infantile neurological disorder due to vitamin B12 deficiency | journal=Eur J Pediatr | year=1991 | pages=205-8 | volume=150 | issue=3 | id=PMID 2044594}}</ref> However, vitamin B12 is a common ingredient in ]s, even vegetarian ones. | ||
⚫ | A study by Gidon Eshel and Pamela Martin, assistant professors of geophysics at the ], compares the CO<sub>2</sub> production resulting from various human diets. They find that a person switching from the typical American diet to a ] diet would, on average, reduce CO<sub>2</sub> production significantly more than switching to a hybrid vehicle. They go on to recommend a vegan diet for this reason, as well as the potentially adverse health effects of dietary animal fats and proteins.<ref>{{cite web |url=http://geosci.uchicago.edu/~gidon/papers/nutri/nutri3.pdf#search=%22Gidon%20Eshel%20and%20Pamela%20Martin%22 |title=Meat-Eaters Aiding Global Warming?: New Research Suggests What You Eat as Important as What You Drive |pages=15-18 |accessdate=2006-10-30 |format=PDF }}</ref> They go on to support their claims by referencing various studies linking animal fats to ] and animal proteins to ]. | ||
⚫ | One study noted the importance of early recognition of significant maternal vitamin B12 deficiency during pregnancy and lactation in vegetarians is emphasized so that appropriate supplementation can be given and irreversible neurologic damage in the infant prevented.<ref>{{cite journal | author=Weiss R, Fogelman Y, Bennett M | title=Severe vitamin B12 deficiency in an infant associated with a maternal deficiency and a strict vegetarian diet | journal=J Pediatr Hematol Oncol | year=2004 | pages=270-1 | volume=26 | issue=4 | id=PMID 15087959}}</ref> | ||
⚫ | The United Nations released a groundbreaking report in November 2006 linking animal agriculture to environmental damage. The report, titled "Livestock’s Long Shadow–Environmental Issues and Options,"<ref>{{cite web |url=http://www.virtualcentre.org/en/library/key_pub/longshad/A0701E00.htm | ||
⚫ | |title=Livestock’s Long Shadow–Environmental Issues and Options|accessdate=2007-01-04}}</ref> concludes that the livestock sector (primarily cows, chickens, and pigs) emerges as one of the top two or three most significant contributors to our most serious environmental problems, at every scale from local to global. It is one of the largest sources of greenhouse gases - responsible for 18% of the world’s greenhouse gas emissions as measured in CO<sub>2</sub> equivalents. By comparison, all transportation emits 13.5% of the CO<sub>2</sub>. It produces 65% of human-related nitrous oxide (which has 296 times the global warming potential of CO<sub>2</sub>) and 37% of all human-induced methane (which is 23 times as warming as CO<sub>2</sub>). It also generates 64% of the ammonia, which contributes to acid rain and acidification of ecosystems. | ||
⚫ | Another B12 study was conducted in rural Africa, partially backed by the U.S. based ], which demonstrated a dramatic improvement in the health of individuals who had, prior to the study, been on diets completely lacking in animal products. The study concluded that the added nutrients, especially ] contained in the meat and milk improved the health of the children in the study.<ref name="childrenharmed">{{cite news|url=http://news.bbc.co.uk/1/hi/health/4282257.stm|author=Michelle Roberts|date=] ]|publisher=]|title=Children 'harmed' by vegan diets}}</ref> The author of the study, Professor Lindsay Allen of the United States ], declared: "There's absolutely no question that it's unethical for parents to bring up their children as strict vegans, unless those who practiced them were well-informed about how to add back the missing nutrients through supplements or fortified foods."<ref name="childrenharmed"/><ref>{{cite news| first=Christian| last=Danielsen| title=UCD professor's comments on vegan diet hotly debated| url=http://www.californiaaggie.com/media/storage/paper981/news/2005/03/02/FrontPage/Ucd-Professors.Comments.On.Vegan.Diet.Hotly.Debated-1319784.shtml| work=California Aggie|date=]| accessdate=2006-10-30}}</ref><ref>{{cite web|url=http://glcrsp.ucdavis.edu/publications/newsletters/SPRG05.pdf|format=PDF|title=Former Beatle Paul McCartney Calls GL-CRSP Nutrition Study 'Rubbish'|work=Ruminations Newsletter|date=Spring 2005|accessdate=2006-10-31}}</ref> However, the ] contended that the findings of the study were not applicable to vegan children in the developed world. They note that B12 (produced by fermenting carbohydrates with specific strains of bacteria) is now included in many fortified foods generally available. Noting that the impoverished children in the study had diets deficient in zinc, B12 and iron, they concluded, "There is no evidence that our vegan and vegetarian children in this country suffer impaired development." They did note, however, that young children, pregnant and nursing women are vulnerable as vegans, urging parents to review their children's diets to be sure that they have a well-balanced diet.<ref>{{cite web| url=http://www.guardian.co.uk/food/Story/0,2763,1419386,00.html|title=Raising children as vegans 'unethical', says professor|first=Sarah|last=Left|work=Guardian Unlimited|publisher=Guardian Newspapers Limited|date=2005-02-21|accessdate=2006-10-31}}</ref> | ||
⚫ | ==Vegan cuisine== | ||
⚫ | ===Mineral deficiencies=== | ||
⚫ | :''For recipes and further information see the ] article on ].'' | ||
⚫ | The US ] in its report states that vegetarian women of childbearing age have an increased chance of menstrual irregularities, and that vegetarians run the risk of not consuming enough micronutrients like copper, iron and zinc in their diet.<ref>{{cite news|url=http://www.fda.gov/bbs/topics/CONSUMER/CON00138.html|title=Vegetarian Diets: The Plusses and the Pitfalls| first=Dixie| last=Farley| publisher=]|work=FDA Consumer|date=1992-05|accessdate=2006-10-30}}</ref> The ] recommends vegan mothers supplement for ], ], and ].<ref>{{cite web|url=http://www.eatright.org/cps/rde/xchg/ada/hs.xsl/advocacy_3773_ENU_HTML.htm |title=Nutrition and lifestyle for a healthy pregnancy outcome |publisher=] |author=Lucia Lynn Kaiser |coauthors=Lindsay Allen |accessdate=2007-02-14 |date=2002-05-03}}</ref><ref>{{cite web|url=http://www.eatright.org/cps/rde/xchg/ada/hs.xsl/home_9812_ENU_HTML.htm |title=The Vegetarian Mom-to-Be |publisher=] |author=ADA’s Public Relations Team |accessdate=2007-02-14 |date=2006-10-03}}</ref> | ||
⚫ | ===Other nutrients=== | ||
⚫ | The cuisines of most nations contain dishes that are suitable for a vegan diet, as are specific traditional ingredients such as ], ] and the ] product ] in Asian diets.<ref>{{cite web |url=http://www.tofufest.org/tofuindex/tofufest/news_general/history_of_tofu/ |title=History of Tofu |accessdate=2007-02-18 |last=Shurtleff |first=William |publisher=LA Tofu Festival }}</ref><ref>{{cite book |last=Jacobs |first=Leonard |coauthors=Aveline Kushi, and Barbara Jacobs |title=Cooking with Seitan: The Complete Vegetarian "Wheat-meat" Cookbook |year=1994 |publisher=Avery |pages=5-6 |isbn=978-0895295996 }}</ref><ref>{{cite web |url=http://www.tempeh.info/tempeh-history.php |title=History of Tempeh |accessdate=2007-02-18 |publisher=tempeh.info }}</ref><ref name="bbcveganprotein">{{cite web |url=http://www.bbc.co.uk/food/vegetarian_and_vegan/veganproteins.shtml |title=Vegan proteins |accessdate=2007-02-23 |work=BBC Food |publisher=] }}</ref> Many recipes that traditionally contain animal products can be adapted by substituting vegan ingredients, e.g. nut, grain or ] used to replace cow's milk;<ref name="bbcveganprotein"/><ref name="ppkbaking">{{cite web |url=http://www.theppk.com/veganbaking.html |title=Baking without eggs, milk and buttah |accessdate=2007-02-23 |publisher= Post Punk Kitchen }}</ref> eggs replaced by substitutes such as products made from potato starch.<ref name="bbcveganprotein"/><ref name="ppkbaking"/><ref name="flaxeggs">{{cite web |url=http://www.ochef.com/687.htm |title=Vegan Substitution for Egg Whites |accessdate=2007-02-23 |publisher=Food News Service |work=Ochef.com |quote=Q. What is a vegan substitute for egg whites? A. And the mystery ingredient is… flax seed. }}</ref> Additionally, artificial "meat" products (]) made from non-animal derived ingredients such as soya or ], including imitation ], ], ]s, and ]s are widely available.<ref name="bbcveganprotein"/><ref>{{cite web |url=http://www.bryannaclarkgrogan.com/page/page/628710.htm |title=Vegan Meat Analogs, Dairy Substitutes, and Egg Alternatives |accessdate=2007-02-23 |author=Bryanna Clark Grogan |work=Bryanna's Vegan Feast }}</ref> | ||
⚫ | Adequate amounts of vitamin D may be obtained by spending 15 to 30 minutes every few days in the sunlight, although this may be difficult for vegans in areas with low levels of sunlight during winter.<ref name="vitaminDvegansociety"/><ref name="nutritionvegetariansociety">{{cite web |url=http://www.vegsoc.org/info/vegan-nutrition.html#vitd |title=Information Sheet: Vegan Nutrition |accessdate=2007-02-22 |publisher=] }}</ref><ref name="healthyvegan">{{cite web |url=http://www.veganoutreach.org/health/stayinghealthy.html#vitamind |title=Staying a Healthy Vegan |accessdate=2007-02-22 |author=Jack Norris, RD |date=2003-04-18 |publisher=] |quote=There are no reliable, unfortified plant sources of vitamin B12; therefore fortified foods and/or supplements are necessary for the optimal health of vegans. }}</ref> | ||
⚫ | A 2007 study showed that vegans have an increased risk of bone fractures than both meat eaters and vegetarians, likely due to lower dietary calcium intake, but that vegans consuming more than the UK's estimated average requirements for calcium (525 mg/day) had risk of bone fractures similar to other groups.<ref name="ejcnveganfracture"/> It is recommended that vegans eat three servings per day of a high calcium food, such as fortified soy milk and take a calcium supplement as necessary.<ref name="calciumvitamindveganhealth"/><ref name="adajournal"/> | ||
⚫ | ==Similar diets and lifestyles== | ||
⚫ | Diets such as ], ] and ] are related to veganism, but have significant differences from standard veganism. There are also numerous religious groups that regularly or occasionally practice a similar diet, including some ] sects,{{fact|date=February 2007}} ],<ref name="jainvegan">{{cite web |url=http://www.barcelona2004.org/eng/banco_del_conocimiento/documentos/ficha.cfm?idDoc=1241 |title=The role of religion in protecting the Earth (Jainism and the environment: precursors of modern ecology) |accessdate=2007-02-22 |date=2004 |work=Forum 2004: Parliament of the World's Religions |publisher=] |quote=Naresh Jain, Co-Chair of the Interfaith Committee of Jainism Associations in North America, said that the difference lies in Jainists’ strict approach to the vegetarian (or vegan) diet. “Jainism is the only religion that materialises the ideal of non-violence through the vegan diet” he said. }}</ref> ],<ref name="hinduvegans">{{cite web |url=http://www.youngindianvegetarians.co.uk/writings/veganism_and_hinduism.htm |title=Veganism and Hinduism |accessdate=2007-02-22 |author=Jyoti Mehta |publisher=The Young Indian Vegetarians }}</ref> ],<ref name="rastavegan">{{cite journal |last=Campbell |first=M |coauthors=W S Lofters, W N Gibbs |year=1982 |month=12 |title=Rastafarianism and the vegans syndrome |journal=British Medical Journal |volume=285 |issue= |pages=1617-1618 |id=1617–1618 |url=http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=1500778&blobtype=pdf |accessdate=2007-02-22 }}</ref> and the ].<ref name="7thdayvegans">{{cite journal |last=Fraser |first=Gary |year=1999 |month=08 |title=Associations between diet and cancer, ischemic heart disease, and all-cause mortality in non-Hispanic white California Seventh-day Adventists |journal=American Journal of Clinical Nutrition |volume=70 |issue=3 |id=532S-538S |url=http://www.ajcn.org/cgi/content/full/70/3/532S |accessdate=2007-02-22 }}</ref> | ||
⚫ | ===Soy products and genital defects=== | ||
==Health effects== | |||
⚫ | A study has shown that boys born to vegetarian mothers were more likely to suffer from ], a genital defect, possibly as a result of high levels of ] found in soya products, nutrient deficiencies, or exposure to pesticide residues.<ref name="hypospadias">{{cite journal |author=K. North |coauthors=J. Golding, The ALSPAC Study Team |title=A maternal vegetarian diet in pregnancy is associated with hypospadias |journal=] |year=2000 |volume=85 |issue=1 |pages=107-113 |pmid=10619956 |url=http://www.blackwell-synergy.com/doi/full/10.1046/j.1464-410x.2000.00436.x }}</ref> | ||
⚫ | {{main|Vegan nutrition}} | ||
⚫ | |||
⚫ | ===Effects on gender and multiples=== | ||
⚫ | === |
||
⚫ | Some studies show that vegetarian women are much more likely to have female babies. A study of 6,000 pregnant women in 1998 "found that while the national average in Britain is 106 boys born to every 100 girls, for vegetarian mothers the ratio was just 85 boys to 100 girls."<ref></ref> The high amount of oestrogen balancing chemicals (the majority of which are soya ‘isoflavones’) contributes to this effect, as well as to stimulate early pubescence among females, and delay male pubescence.<ref></ref> | ||
⚫ | Vitamin B12, a bacterial product, cannot be reliably found in plant foods.<ref name="healthyvegan"/><ref name="b12vegetariansociety">{{cite web |url=http://www.vegsoc.org/info/b12.html |title=Vitamin B12 Information Sheet |accessdate=2007-02-22 |date= |publisher=] |quote= is exclusively synthesised by bacteria and is found primarily in meat, eggs and dairy products. ... he present consensus is that any B12 present in plant foods is likely to be unavailable to humans and so these foods should not be relied upon as safe sources.}}</ref><ref name="b12vegansociety"/> While it may take one to five years to exhaust some individual's reserves of vitamin B12, many people do not have such reserves,<ref name="B12mythveganhealth">{{cite web |url=http://www.veganhealth.org/b12/often |title=Vegan Health: Myth about How Often Someone Needs B12 |accessdate=2007-01-02|date=2005-07-22 |work=Vitamin B12: Are You Getting It? |author=Jack Norris, RD |work=veganhealth.org |publisher=] }}</ref> and serious health consequences are a risk as a result of B12 deficiency.<ref>{{cite web |url=http://www.merck.com/mmhe/sec12/ch154/ch154j.html |title=Vitamin B12 (cobalamin) |accessdate=2006-10-30 |work=Merck Manual Home Edition}}</ref> Additionally, mild B12 deficiency can develop even with such reserves.<ref name="B12mythveganhealth"/> In a 2002 laboratory study, more of the strict vegan participants' B12 and iron levels were compromised than those of lacto- or lacto-ovo-vegetarian participants.<ref name="vegparameters">{{cite journal|author=Obeid R, Geisel J, Schorr H, Hubner U, Herrmann W.|title=The impact of vegetarianism on some haematological parameters|journal=Eur J Haematol. |year=2002|pages=275-9|volume=69|issue=5-6|id=PMID 12460231}}</ref> The ] and ], among others, recommend that vegans either consistently eat foods fortified with B12 or take a daily or weekly B12 supplement.<ref name="healthyvegan"/><ref name="b12vegetariansociety"/><ref name="b12vegansociety"/><ref name="b12vegetarianresourcegroup">{{cite web |url=http://www.vrg.org/nutrition/b12.htm |title=Vitamin B12 in the Vegan Diet |accessdate=2007-02-22 |author=Reed Mangels, Ph.D., R.D. |publisher= }}</ref><ref name="b12PCRM">{{cite web |url=http://www.pcrm.org/health/veginfo/b12.html |title=Don't Vegetarians Have Trouble Getting Enough Vitamin B12? |accessdate=2007-02-22 |publisher=] }}</ref> ], ], ], ] produce, soil on unwashed vegetables, and ] bacteria have not been shown to be reliable sources of B12 for the dietary needs of vegans.<ref name="b12plantsources">{{cite web |url=http://www.veganhealth.org/b12/plant |title=Vegan Health: B12 in Tempeh, Seaweeds, Organic Produce, and Other Plant Foods |accessdate=2007-02-22 |author=Jack Norris, RD |work=veganhealth.org |publisher=] }}</ref><ref name="b12intestine">{{cite web |url=http://www.veganhealth.org/b12/int |title=Vegan Health: Are Intestinal Bacteria a Reliable Source of B12? |accessdate=2007-02-22 |author=Jack Norris, RD |work=veganhealth.org |publisher=] }}</ref> | ||
⚫ | A different study found that vegan mothers are five times less likely to have twins than those who eat animal products.<ref>{{cite journal |last=Steinman |first=G. |year=2006 |month=05 |title=Mechanisms of twinning: VII. Effect of diet and heredity on the human twinning rate. |journal=] |volume=51 |issue=5 |pages=405-10 |pmid=16779988 |url=http://www.reproductivemedicine.com/online/2006/405.pdf |format=PDF, ''fee required'' |accessdate=2007-02-25 }}</ref> | ||
⚫ | Adequate amounts of vitamin D may be obtained by spending 15 to 30 minutes every few days in the sunlight, although this may be difficult for vegans in areas with low levels of sunlight during winter.<ref name="vitaminDvegansociety"/><ref name="nutritionvegetariansociety">{{cite web |url=http://www.vegsoc.org/info/vegan-nutrition.html#vitd |title=Information Sheet: Vegan Nutrition |accessdate=2007-02-22 |publisher=] }}</ref><ref name="healthyvegan">{{cite web |url=http://www.veganoutreach.org/health/stayinghealthy.html#vitamind |title=Staying a Healthy Vegan |accessdate=2007-02-22 |author=Jack Norris, RD |date=2003-04-18 |publisher=] |quote=There are no reliable, unfortified plant sources of vitamin B12; therefore fortified foods and/or supplements are necessary for the optimal health of vegans. }}</ref> | ||
⚫ | A 2007 study showed that vegans have an increased risk of bone fractures than both meat eaters and vegetarians, likely due to lower dietary calcium intake, but that vegans consuming more than the UK's estimated average requirements for calcium (525 mg/day) had risk of bone fractures similar to other groups.<ref name="ejcnveganfracture"/> It is recommended that vegans eat three servings per day of a high calcium food, such as fortified soy milk and take a calcium supplement as necessary.<ref name="calciumvitamindveganhealth"/><ref name="adajournal"/> | ||
===Link with eating disorders=== | ===Link with eating disorders=== | ||
The American Dietetic Association found that vegetarian diets may be more common among adolescents with eating disorders than in the general adolescent population, and that professionals should be aware of adolescents who limit the food choices and exhibit symptoms of eating disorders.<ref name="adajournal"/> The ADA indicates that the evidence suggests that the adoption of a vegetarian diet does not lead to eating disorders, but "vegetarian diets may be selected to camouflage an existing eating disorder."<ref name="adajournal"/> Other studies and statements by dietitians and counselors support this conclusion.<ref>{{cite news |first=Katherine |last=Dedyna |title=Healthy lifestyle, or politically correct eating disorder? |url=http://compulsiveeating.com/PR_vegetarisnismeatingdisorders.htm |work=Victoria Times Colonist |publisher=CanWest MediaWorks Publications Inc. |date=2004-01-30 |accessdate=2006-10-30 }}</ref><ref>{{cite journal | author=O'Connor MA, Touyz SW, Dunn SM, Beumont PJ | title=Vegetarianism in anorexia nervosa? A review of 116 consecutive cases | journal=Med J Aust | year=1987 | pages=540-2 | volume=147 | issue=11-12 | id=PMID 3696039}}</ref><ref>Davis, Brenda. (2002). ''Becoming Vegan: The Complete Guide to Adopting a Healthy Plant-Based Diet''. p.224. ISBN 1-57067-103-6</ref> | The American Dietetic Association found that vegetarian diets may be more common among adolescents with eating disorders than in the general adolescent population, and that professionals should be aware of adolescents who limit the food choices and exhibit symptoms of eating disorders.<ref name="adajournal"/> The ADA indicates that the evidence suggests that the adoption of a vegetarian diet does not lead to eating disorders, but "vegetarian diets may be selected to camouflage an existing eating disorder."<ref name="adajournal"/> Other studies and statements by dietitians and counselors support this conclusion.<ref>{{cite news |first=Katherine |last=Dedyna |title=Healthy lifestyle, or politically correct eating disorder? |url=http://compulsiveeating.com/PR_vegetarisnismeatingdisorders.htm |work=Victoria Times Colonist |publisher=CanWest MediaWorks Publications Inc. |date=2004-01-30 |accessdate=2006-10-30 }}</ref><ref>{{cite journal | author=O'Connor MA, Touyz SW, Dunn SM, Beumont PJ | title=Vegetarianism in anorexia nervosa? A review of 116 consecutive cases | journal=Med J Aust | year=1987 | pages=540-2 | volume=147 | issue=11-12 | id=PMID 3696039}}</ref><ref>Davis, Brenda. (2002). ''Becoming Vegan: The Complete Guide to Adopting a Healthy Plant-Based Diet''. p.224. ISBN 1-57067-103-6</ref> | ||
⚫ | ==Resources and the environment== | ||
⚫ | ===Vegan |
||
⚫ | {{main|Environmental vegetarianism}} | ||
The American Dietetic Association says that a well-planned vegan diet is appropriate in all stages of life, but "individual assessment of dietary intakes of vegetarians is required."<ref name="adajournal"/> | |||
⚫ | People who adopt a vegan diet to reduce resource consumption or ] extend the idea of ] to all animal products. The fundamental rationale is that each additional ] in a food chain passes on only a fraction of the energy it consumes, so a diet that consists of plant products rather than animal products will generally use significantly less of all resources, and indirectly cause less environmental damage. | ||
====Vitamin B12 deficiency==== | |||
⚫ | Severe and permanent neurological damage to infants can be caused when mothers do not obtain adequate ] in their diet while breastfeeding.<ref>{{cite journal | author=Kuhne T, Bubl R, Baumgartner R | title=Maternal vegan diet causing a serious infantile neurological disorder due to vitamin B12 deficiency | journal=Eur J Pediatr | year=1991 | pages=205-8 | volume=150 | issue=3 | id=PMID 2044594}}</ref> However, vitamin B12 is a common ingredient in ]s, even vegetarian ones. | ||
⚫ | A study by Gidon Eshel and Pamela Martin, assistant professors of geophysics at the ], compares the CO<sub>2</sub> production resulting from various human diets. They find that a person switching from the typical American diet to a ] diet would, on average, reduce CO<sub>2</sub> production significantly more than switching to a hybrid vehicle. They go on to recommend a vegan diet for this reason, as well as the potentially adverse health effects of dietary animal fats and proteins.<ref>{{cite web |url=http://geosci.uchicago.edu/~gidon/papers/nutri/nutri3.pdf#search=%22Gidon%20Eshel%20and%20Pamela%20Martin%22 |title=Meat-Eaters Aiding Global Warming?: New Research Suggests What You Eat as Important as What You Drive |pages=15-18 |accessdate=2006-10-30 |format=PDF }}</ref> They go on to support their claims by referencing various studies linking animal fats to ] and animal proteins to ]. | ||
⚫ | One study noted the importance of early recognition of significant maternal vitamin B12 deficiency during pregnancy and lactation in vegetarians is emphasized so that appropriate supplementation can be given and irreversible neurologic damage in the infant prevented.<ref>{{cite journal | author=Weiss R, Fogelman Y, Bennett M | title=Severe vitamin B12 deficiency in an infant associated with a maternal deficiency and a strict vegetarian diet | journal=J Pediatr Hematol Oncol | year=2004 | pages=270-1 | volume=26 | issue=4 | id=PMID 15087959}}</ref> | ||
⚫ | The United Nations released a groundbreaking report in November 2006 linking animal agriculture to environmental damage. The report, titled "Livestock’s Long Shadow–Environmental Issues and Options,"<ref>{{cite web |url=http://www.virtualcentre.org/en/library/key_pub/longshad/A0701E00.htm | ||
⚫ | Another B12 study was conducted in rural Africa, partially backed by the U.S. based ], which demonstrated a dramatic improvement in the health of individuals who had, prior to the study, been on diets completely lacking in animal products. The study concluded that the added nutrients, especially ] contained in the meat and milk improved the health of the children in the study.<ref name="childrenharmed">{{cite news|url=http://news.bbc.co.uk/1/hi/health/4282257.stm|author=Michelle Roberts|date=] ]|publisher=]|title=Children 'harmed' by vegan diets}}</ref> The author of the study, Professor Lindsay Allen of the United States ], declared: "There's absolutely no question that it's unethical for parents to bring up their children as strict vegans, unless those who practiced them were well-informed about how to add back the missing nutrients through supplements or fortified foods."<ref name="childrenharmed"/><ref>{{cite news| first=Christian| last=Danielsen| title=UCD professor's comments on vegan diet hotly debated| url=http://www.californiaaggie.com/media/storage/paper981/news/2005/03/02/FrontPage/Ucd-Professors.Comments.On.Vegan.Diet.Hotly.Debated-1319784.shtml| work=California Aggie|date=]| accessdate=2006-10-30}}</ref><ref>{{cite web|url=http://glcrsp.ucdavis.edu/publications/newsletters/SPRG05.pdf|format=PDF|title=Former Beatle Paul McCartney Calls GL-CRSP Nutrition Study 'Rubbish'|work=Ruminations Newsletter|date=Spring 2005|accessdate=2006-10-31}}</ref> However, the ] contended that the findings of the study were not applicable to vegan children in the developed world. They note that B12 (produced by fermenting carbohydrates with specific strains of bacteria) is now included in many fortified foods generally available. Noting that the impoverished children in the study had diets deficient in zinc, B12 and iron, they concluded, "There is no evidence that our vegan and vegetarian children in this country suffer impaired development." They did note, however, that young children, pregnant and nursing women are vulnerable as vegans, urging parents to review their children's diets to be sure that they have a well-balanced diet.<ref>{{cite web| url=http://www.guardian.co.uk/food/Story/0,2763,1419386,00.html|title=Raising children as vegans 'unethical', says professor|first=Sarah|last=Left|work=Guardian Unlimited|publisher=Guardian Newspapers Limited|date=2005-02-21|accessdate=2006-10-31}}</ref> | ||
⚫ | |title=Livestock’s Long Shadow–Environmental Issues and Options|accessdate=2007-01-04}}</ref> concludes that the livestock sector (primarily cows, chickens, and pigs) emerges as one of the top two or three most significant contributors to our most serious environmental problems, at every scale from local to global. It is one of the largest sources of greenhouse gases - responsible for 18% of the world’s greenhouse gas emissions as measured in CO<sub>2</sub> equivalents. By comparison, all transportation emits 13.5% of the CO<sub>2</sub>. It produces 65% of human-related nitrous oxide (which has 296 times the global warming potential of CO<sub>2</sub>) and 37% of all human-induced methane (which is 23 times as warming as CO<sub>2</sub>). It also generates 64% of the ammonia, which contributes to acid rain and acidification of ecosystems. | ||
⚫ | ==Vegan cuisine== | ||
⚫ | |||
⚫ | The US ] in its report states that vegetarian women of childbearing age have an increased chance of menstrual irregularities, and that vegetarians run the risk of not consuming enough micronutrients like copper, iron and zinc in their diet.<ref>{{cite news|url=http://www.fda.gov/bbs/topics/CONSUMER/CON00138.html|title=Vegetarian Diets: The Plusses and the Pitfalls| first=Dixie| last=Farley| publisher=]|work=FDA Consumer|date=1992-05|accessdate=2006-10-30}}</ref> The ] recommends vegan mothers supplement for ], ], and ].<ref>{{cite web|url=http://www.eatright.org/cps/rde/xchg/ada/hs.xsl/advocacy_3773_ENU_HTML.htm |title=Nutrition and lifestyle for a healthy pregnancy outcome |publisher=] |author=Lucia Lynn Kaiser |coauthors=Lindsay Allen |accessdate=2007-02-14 |date=2002-05-03}}</ref><ref>{{cite web|url=http://www.eatright.org/cps/rde/xchg/ada/hs.xsl/home_9812_ENU_HTML.htm |title=The Vegetarian Mom-to-Be |publisher=] |author=ADA’s Public Relations Team |accessdate=2007-02-14 |date=2006-10-03}}</ref> | ||
⚫ | :''For recipes and further information see the ] article on ].'' | ||
⚫ | |||
⚫ | A study has shown that boys born to vegetarian mothers were more likely to suffer from ], a genital defect, possibly as a result of high levels of ] found in soya products, nutrient deficiencies, or exposure to pesticide residues.<ref name="hypospadias">{{cite journal |author=K. North |coauthors=J. Golding, The ALSPAC Study Team |title=A maternal vegetarian diet in pregnancy is associated with hypospadias |journal=] |year=2000 |volume=85 |issue=1 |pages=107-113 |pmid=10619956 |url=http://www.blackwell-synergy.com/doi/full/10.1046/j.1464-410x.2000.00436.x }}</ref> | ||
⚫ | The cuisines of most nations contain dishes that are suitable for a vegan diet, as are specific traditional ingredients such as ], ] and the ] product ] in Asian diets.<ref>{{cite web |url=http://www.tofufest.org/tofuindex/tofufest/news_general/history_of_tofu/ |title=History of Tofu |accessdate=2007-02-18 |last=Shurtleff |first=William |publisher=LA Tofu Festival }}</ref><ref>{{cite book |last=Jacobs |first=Leonard |coauthors=Aveline Kushi, and Barbara Jacobs |title=Cooking with Seitan: The Complete Vegetarian "Wheat-meat" Cookbook |year=1994 |publisher=Avery |pages=5-6 |isbn=978-0895295996 }}</ref><ref>{{cite web |url=http://www.tempeh.info/tempeh-history.php |title=History of Tempeh |accessdate=2007-02-18 |publisher=tempeh.info }}</ref><ref name="bbcveganprotein">{{cite web |url=http://www.bbc.co.uk/food/vegetarian_and_vegan/veganproteins.shtml |title=Vegan proteins |accessdate=2007-02-23 |work=BBC Food |publisher=] }}</ref> Many recipes that traditionally contain animal products can be adapted by substituting vegan ingredients, e.g. nut, grain or ] used to replace cow's milk;<ref name="bbcveganprotein"/><ref name="ppkbaking">{{cite web |url=http://www.theppk.com/veganbaking.html |title=Baking without eggs, milk and buttah |accessdate=2007-02-23 |publisher= Post Punk Kitchen }}</ref> eggs replaced by substitutes such as products made from potato starch.<ref name="bbcveganprotein"/><ref name="ppkbaking"/><ref name="flaxeggs">{{cite web |url=http://www.ochef.com/687.htm |title=Vegan Substitution for Egg Whites |accessdate=2007-02-23 |publisher=Food News Service |work=Ochef.com |quote=Q. What is a vegan substitute for egg whites? A. And the mystery ingredient is… flax seed. }}</ref> Additionally, artificial "meat" products (]) made from non-animal derived ingredients such as soya or ], including imitation ], ], ]s, and ]s are widely available.<ref name="bbcveganprotein"/><ref>{{cite web |url=http://www.bryannaclarkgrogan.com/page/page/628710.htm |title=Vegan Meat Analogs, Dairy Substitutes, and Egg Alternatives |accessdate=2007-02-23 |author=Bryanna Clark Grogan |work=Bryanna's Vegan Feast }}</ref> | ||
⚫ | ==Similar diets and lifestyles== | ||
⚫ | Diets such as ], ] and ] are related to veganism, but have significant differences from standard veganism. There are also numerous religious groups that regularly or occasionally practice a similar diet, including some ] sects,{{fact|date=February 2007}} ],<ref name="jainvegan">{{cite web |url=http://www.barcelona2004.org/eng/banco_del_conocimiento/documentos/ficha.cfm?idDoc=1241 |title=The role of religion in protecting the Earth (Jainism and the environment: precursors of modern ecology) |accessdate=2007-02-22 |date=2004 |work=Forum 2004: Parliament of the World's Religions |publisher=] |quote=Naresh Jain, Co-Chair of the Interfaith Committee of Jainism Associations in North America, said that the difference lies in Jainists’ strict approach to the vegetarian (or vegan) diet. “Jainism is the only religion that materialises the ideal of non-violence through the vegan diet” he said. }}</ref> ],<ref name="hinduvegans">{{cite web |url=http://www.youngindianvegetarians.co.uk/writings/veganism_and_hinduism.htm |title=Veganism and Hinduism |accessdate=2007-02-22 |author=Jyoti Mehta |publisher=The Young Indian Vegetarians }}</ref> ],<ref name="rastavegan">{{cite journal |last=Campbell |first=M |coauthors=W S Lofters, W N Gibbs |year=1982 |month=12 |title=Rastafarianism and the vegans syndrome |journal=British Medical Journal |volume=285 |issue= |pages=1617-1618 |id=1617–1618 |url=http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=1500778&blobtype=pdf |accessdate=2007-02-22 }}</ref> and the ].<ref name="7thdayvegans">{{cite journal |last=Fraser |first=Gary |year=1999 |month=08 |title=Associations between diet and cancer, ischemic heart disease, and all-cause mortality in non-Hispanic white California Seventh-day Adventists |journal=American Journal of Clinical Nutrition |volume=70 |issue=3 |id=532S-538S |url=http://www.ajcn.org/cgi/content/full/70/3/532S |accessdate=2007-02-22 }}</ref> | ||
⚫ | |||
⚫ | Some studies show that vegetarian women are much more likely to have female babies. A study of 6,000 pregnant women in 1998 "found that while the national average in Britain is 106 boys born to every 100 girls, for vegetarian mothers the ratio was just 85 boys to 100 girls."<ref></ref> The high amount of oestrogen balancing chemicals (the majority of which are soya ‘isoflavones’) contributes to this effect, as well as to stimulate early pubescence among females, and delay male pubescence.<ref></ref> | ||
⚫ | A different study found that vegan mothers are five times less likely to have twins than those who eat animal products.<ref>{{cite journal |last=Steinman |first=G. |year=2006 |month=05 |title=Mechanisms of twinning: VII. Effect of diet and heredity on the human twinning rate. |journal=] |volume=51 |issue=5 |pages=405-10 |pmid=16779988 |url=http://www.reproductivemedicine.com/online/2006/405.pdf |format=PDF, ''fee required'' |accessdate=2007-02-25 }}</ref> | ||
==Ethical criticisms== | ==Ethical criticisms== |
Revision as of 17:32, 28 February 2007
"Vegan" redirects here. For other uses, see Vegan (disambiguation).Veganism (also known as strict vegetarianism or pure vegetarianism), as defined by the Vegan Society, is "a philosophy and way of living which seeks to exclude…all forms of exploitation of, and cruelty to, animals for food, clothing or any other purpose." A vegan (one who practices veganism) doesn't use animal products, such as the flesh and organs of animals, their eggs, animal secretions such as dairy products, and products made from animal bones, hooves, skins or furs. People become vegans for a variety of reasons, including ethical concerns for animal rights or the environment, as well as more personal reasons such as perceived health benefits and spiritual or religious concerns.
A 2002 Time/CNN poll, found that 4% of American adults consider themselves vegetarians, and 5% of self-described vegetarians consider themselves vegans. This suggests that 0.2% of American adults are vegans. Also in 2002, the UK Food Standards Agency reported that 5% of respondents self-identified as vegetarian or vegan. Though 29% of that 5% said they avoided "all animal products" only 5% reported avoiding dairy. Based on these figures, approximately 0.25% of the UK population follow a vegan diet. In 2005, The Times estimated there were 250,000 vegans in Britain, which suggests around 0.4% of the UK population is vegan.
Definition
The word vegan, usually pronounced , was originally derived from "vegetarian" in 1944 when Elsie Shrigley and Donald Watson, frustrated that the term "vegetarianism" had come to include the eating of dairy products, founded the UK Vegan Society. They combined the first three and last two letters of vegetarian to form "vegan," which they saw as "the beginning and end of vegetarian." The British Vegan Society defines veganism in this way:
he word "veganism" denotes a philosophy and way of living which seeks to exclude — as far as is possible and practical — all forms of exploitation of, and cruelty to, animals for food, clothing or any other purpose; and by extension, promotes the development and use of animal-free alternatives for the benefit of humans, animals and the environment. In dietary terms it denotes the practice of dispensing with all products derived wholly or partly from animals.
— Vegan Society
Other vegan societies use similar definitions.
The term "animal product" in a vegan context refers to material derived from non-human animals for human use or consumption. Human breast milk for example is acceptable when voluntarily used for human babies, but by comparison when a human being drinks a cow's milk, it is regarded as the consumption of an "animal product." Animal products include meat, poultry, seafood, eggs, dairy products, fur, leather, wool, pearls, and nacre (mother of pearl), among other things. By-products include gelatin, lanolin, rennet, and whey. Items derived from insects include items such as silk, honey, beeswax, shellac and cochineal.
Some vegans avoid cane sugar that has been filtered with bone char and will not drink beer or wine clarified with albumen, animal blood, or isinglass, because though these are not present in the final product, they are still used in the process. However, the group Vegan Outreach argues that the rejection of these items because of the process by which they were obtained misses the point of veganism. Vegans also avoid alcohol that contains or is "smoothened" using animal glycerine. Some also avoid food cooked with equipment that has been used to cook non-vegan foods. Vegans also avoid toothpaste with calcium extracted from animal bones, if they are aware of it. Similarly, soap made from animal fat rather than vegetable fats, is avoided.
Most vegans refrain from supporting industries that use animals directly or indirectly, such as circuses, rodeos, and zoos, and will not use products that are tested on animals.
As a strict form of vegetarianism, veganism may be difficult to follow. Evaluating products as vegan or not requires knowledge of food ingredients and production methods which may not be common to the general population. Furthermore, the near ubiquity of non-vegan ingredients in vitamins, supplements, prescription medicine, toiletries and cosmetics can make fully avoiding animal products nearly impossible as these items are not consistently labelled with their ingredients. The extra effort required to replace non-vegan ingredients in traditional recipes, the inadequacy of some vegan substitutes, and the difficulty in eating out at restaurants also contribute to the perception that the diet to which vegans adhere is difficult.
Motivations
In addition to the ethics of avoiding exploitation of animals and cruelty to animals, there are other things that motivate people to go vegan. These include opinions about the esthetics of animal slaughter and butchery, especially the opinion that such activities are "ugly," or that slaughterhouses are "unpleasant neighbors;" health advantages, both proven, and presumed or believed; effects on natural resources and the environment; and spiritual reasons such as facilitating union or yoking with the one, such as are found in Jainism, Hinduism, and Buddhism, and in some personal beliefs.
Ethics of Veganism
See also: Ethics of eating meatVegans generally oppose the violence and cruelty involved in the meat, dairy, non-vegan cosmetics, clothing, and other industries. (See draize test, LD50, animal testing, vivisection, and factory farming)
Some utilitarian philosophers, such as Jeremy Bentham and Peter Singer, argue that the suffering of sentient animals is relevant to ethical decisions, though they do not rely on the concept of rights and believe that non-human animals only have an interest in not suffering. Others like Gary L. Francione, believe that all sentient beings have an interest in both not suffering and continuing to live. A common argument is that animals have the ability to feel pleasure so killing them is wrong, because it destroys any hope of future pleasure. He claims that it is therefore unethical to treat them as property or a means to an end (see animal rights). Although these theories draw similar conclusions, they are not wholly compatible with one another.
Health Aspects of Vegan Diet
Main article: Vegan nutritionHealth Benefits of Vegan Diet
The American Dietetic Association and Dietitians of Canada state that "well-planned vegan and other types of vegetarian diets are appropriate for all stages of the life cycle, including during pregnancy, lactation, infancy, childhood, and adolescence."
Studies have strongly correlated a plant based diet with better health benefits than a meat heavy diet.
Vegan diets tend toward several nutritional benefits, including lower levels of saturated fat, no cholesterol, and higher levels of carbohydrates, fiber, magnesium, potassium, folate, antioxidant vitamins C and E and phytochemicals.
Vegetarians have been reported to have lower body mass indices than nonvegetarians. The Physicians Committee for Responsible Medicine says that one small scale study has observed that a vegan diet can reduce blood cholesterol in people with, and significantly reduce the complications of Type 2 diabetes.
Dangers of Industry Livestock Practices
There are also claims that industry livestock feeding practices pose health threats to human consumers. According to Dr. Michael Greger in a January 2004 lecture at MIT (which is the basis for Whistleblower, a 2007 documentary film by Jeff Bellamar) each year more than one million tons of animal excrement are fed back to farm animals raised for human consumption to lower the feed costs. He also says that up to 10% of blood from killed animals is mixed into some cattle feed, and up to 30% of some poultry feed is made up of the blood. Bovine spongiform encephalopathy (BSE), commonly known as mad cow disease, is believed to be caused by cows being fed with contaminated meat and bone meal, a high-protein substance obtained from the remnants of butchered animals, including cows and sheep. In most parts of the developed world, such remnants are no longer allowed in feed for ruminant animals, and the World Health Organization recommends a complete ban on ruminant-to-ruminant feeding, but the practice persists in a few countries.
Vegan Athletes
There are a number of vegan athletes. Vegan athletes compete in a variety of sports, such as powerlifting, bodybuilding, martial arts, long distance running, and many others. Multiple Olympic gold medallist Carl Lewis has stated that he became vegan in 1990 and achieved his "best year of track competition" when he ate a vegan diet.
Other Comparisons
Some studies have found benefits associated with diets rich in whole plant foods, and risks associated with diets rich in animal-based foods. One of the researchers from the 1990 epidemiological study, "The China Study," said "Even small increases in the consumption of animal-based foods was associated with increased disease risk." A study in Spain includes the comment that "There is a growing body of evidence to show that consumption of fruit and vegetables may protect against development of CVD," and then goes on to provide more evidence. Conversely, studies in Japan found that increased consumption of some animal products coincided with a decrease in risk for some forms of cerebrovascular disease and stroke mortality.
Controversial Health Claims
There are a number of controversial and unproven health claims that have been made for a vegan diet, that have been widely propogated, such as the claim that artificial substances such as growth hormones and antibiotics, which are often given to farmed animals, may be present in animal food products, and may be harmful. While such claims may sound plausible, there doesn't seem to be enough scientific data to support them.
Health risks of Veganism
Vegans are potentially at risk for being deficient in nutrients such as vitamin B12, vitamin D, calcium, iodine and omega-3 fatty acids. These deficiencies can have potentially serious consequences, including anemia, rickets and cretinism in children, and osteomalacia and hyperthyroidism in adults. Supplementation, particularly for vitamin B12, is highly recommended for vegans.
Vitamin B12 not found in plant products
Vitamin B12, a bacterial product, cannot be reliably found in plant foods. While it may take one to five years to exhaust some individual's reserves of vitamin B12, many people do not have such reserves, and serious health consequences are a risk as a result of B12 deficiency. Additionally, mild B12 deficiency can develop even with such reserves. In a 2002 laboratory study, more of the strict vegan participants' B12 and iron levels were compromised than those of lacto- or lacto-ovo-vegetarian participants. The Vegan Society and Vegan Outreach, among others, recommend that vegans either consistently eat foods fortified with B12 or take a daily or weekly B12 supplement. Tempeh, seaweeds, spirulina, organic produce, soil on unwashed vegetables, and intestinal bacteria have not been shown to be reliable sources of B12 for the dietary needs of vegans.
Severe and permanent neurological damage to infants can be caused when mothers do not obtain adequate vitamin B12 in their diet while breastfeeding. However, vitamin B12 is a common ingredient in prenatal vitamins, even vegetarian ones.
One study noted the importance of early recognition of significant maternal vitamin B12 deficiency during pregnancy and lactation in vegetarians is emphasized so that appropriate supplementation can be given and irreversible neurologic damage in the infant prevented.
Another B12 study was conducted in rural Africa, partially backed by the U.S. based National Cattlemen's Beef Association, which demonstrated a dramatic improvement in the health of individuals who had, prior to the study, been on diets completely lacking in animal products. The study concluded that the added nutrients, especially vitamin B12 contained in the meat and milk improved the health of the children in the study. The author of the study, Professor Lindsay Allen of the United States Agricultural Research Service, declared: "There's absolutely no question that it's unethical for parents to bring up their children as strict vegans, unless those who practiced them were well-informed about how to add back the missing nutrients through supplements or fortified foods." However, the British Dietetic Association contended that the findings of the study were not applicable to vegan children in the developed world. They note that B12 (produced by fermenting carbohydrates with specific strains of bacteria) is now included in many fortified foods generally available. Noting that the impoverished children in the study had diets deficient in zinc, B12 and iron, they concluded, "There is no evidence that our vegan and vegetarian children in this country suffer impaired development." They did note, however, that young children, pregnant and nursing women are vulnerable as vegans, urging parents to review their children's diets to be sure that they have a well-balanced diet.
Mineral deficiencies
The US Food and Drug Administration in its report states that vegetarian women of childbearing age have an increased chance of menstrual irregularities, and that vegetarians run the risk of not consuming enough micronutrients like copper, iron and zinc in their diet. The American Dietetic Association recommends vegan mothers supplement for iron, vitamin D, and vitamin B12.
Other nutrients
Adequate amounts of vitamin D may be obtained by spending 15 to 30 minutes every few days in the sunlight, although this may be difficult for vegans in areas with low levels of sunlight during winter.
A 2007 study showed that vegans have an increased risk of bone fractures than both meat eaters and vegetarians, likely due to lower dietary calcium intake, but that vegans consuming more than the UK's estimated average requirements for calcium (525 mg/day) had risk of bone fractures similar to other groups. It is recommended that vegans eat three servings per day of a high calcium food, such as fortified soy milk and take a calcium supplement as necessary.
Soy products and genital defects
A study has shown that boys born to vegetarian mothers were more likely to suffer from hypospadias, a genital defect, possibly as a result of high levels of phytoestrogens found in soya products, nutrient deficiencies, or exposure to pesticide residues.
Effects on gender and multiples
Some studies show that vegetarian women are much more likely to have female babies. A study of 6,000 pregnant women in 1998 "found that while the national average in Britain is 106 boys born to every 100 girls, for vegetarian mothers the ratio was just 85 boys to 100 girls." The high amount of oestrogen balancing chemicals (the majority of which are soya ‘isoflavones’) contributes to this effect, as well as to stimulate early pubescence among females, and delay male pubescence.
A different study found that vegan mothers are five times less likely to have twins than those who eat animal products.
Link with eating disorders
The American Dietetic Association found that vegetarian diets may be more common among adolescents with eating disorders than in the general adolescent population, and that professionals should be aware of adolescents who limit the food choices and exhibit symptoms of eating disorders. The ADA indicates that the evidence suggests that the adoption of a vegetarian diet does not lead to eating disorders, but "vegetarian diets may be selected to camouflage an existing eating disorder." Other studies and statements by dietitians and counselors support this conclusion.
Resources and the environment
Main article: Environmental vegetarianismPeople who adopt a vegan diet to reduce resource consumption or ecological footprint extend the idea of environmental vegetarianism to all animal products. The fundamental rationale is that each additional trophic level in a food chain passes on only a fraction of the energy it consumes, so a diet that consists of plant products rather than animal products will generally use significantly less of all resources, and indirectly cause less environmental damage.
A study by Gidon Eshel and Pamela Martin, assistant professors of geophysics at the University of Chicago, compares the CO2 production resulting from various human diets. They find that a person switching from the typical American diet to a vegan diet would, on average, reduce CO2 production significantly more than switching to a hybrid vehicle. They go on to recommend a vegan diet for this reason, as well as the potentially adverse health effects of dietary animal fats and proteins. They go on to support their claims by referencing various studies linking animal fats to cardiovascular diseases and animal proteins to cancer.
The United Nations released a groundbreaking report in November 2006 linking animal agriculture to environmental damage. The report, titled "Livestock’s Long Shadow–Environmental Issues and Options," concludes that the livestock sector (primarily cows, chickens, and pigs) emerges as one of the top two or three most significant contributors to our most serious environmental problems, at every scale from local to global. It is one of the largest sources of greenhouse gases - responsible for 18% of the world’s greenhouse gas emissions as measured in CO2 equivalents. By comparison, all transportation emits 13.5% of the CO2. It produces 65% of human-related nitrous oxide (which has 296 times the global warming potential of CO2) and 37% of all human-induced methane (which is 23 times as warming as CO2). It also generates 64% of the ammonia, which contributes to acid rain and acidification of ecosystems.
Vegan cuisine
- For recipes and further information see the Wikibooks Cookbook article on Vegan Cuisine.
The cuisines of most nations contain dishes that are suitable for a vegan diet, as are specific traditional ingredients such as tofu, tempeh and the wheat product seitan in Asian diets. Many recipes that traditionally contain animal products can be adapted by substituting vegan ingredients, e.g. nut, grain or soy milk used to replace cow's milk; eggs replaced by substitutes such as products made from potato starch. Additionally, artificial "meat" products ("analogs" or "mock meats") made from non-animal derived ingredients such as soya or gluten, including imitation sausages, ground beef, burgers, and chicken nuggets are widely available.
Similar diets and lifestyles
Diets such as raw veganism, freeganism and fruitarianism are related to veganism, but have significant differences from standard veganism. There are also numerous religious groups that regularly or occasionally practice a similar diet, including some Buddhist sects, Jains, Hindus, Rastafarians, and the Seventh-day Adventists.
Ethical criticisms
Steven Davis, professor of animal science at Oregon State University, claims that the number of wild animals killed in crop production is greater than those killed in ruminant-pasture production and therefore eating meat causes less harm to animals than a vegan diet. Gaverick Matheny, a Ph.D. candidate in agricultural economics at the University of Maryland, claims that Davis' reasoning contains several major flaws, including distorting the notion of "harm" to animals, and miscalculating the number of animal deaths based upon areas of land rather than per consumer. Other critics have questioned the validity of the ethical claims put forward by some vegans, stating that "the belief that all life is sacred can lead to absurdities such as allowing mosquitoes to spread malaria, or vipers to run loose on one's premises."
References
- C. de Haan et al. Livestock and the Environment: Finding a Balance FAO, USAID, World Bank, 1998. Provides evidence of environmental damage caused by animal farming, mainly factory farming.
- Keeton, W.T. et al. Biological Science, 5th Ed., Publishers: W. W. Norton & Company, New York and London., ISBN 0-393-96223-7 (hardback)
- Langley, G. Vegan Nutrition: a survey of research, The Vegan Society 1988, ISBN 0-907337-15-5
- Marcus, Erik. (2000) Vegan: The New Ethics of Eating
- Moore Lappe, F. Diet for a Small Planet. Ballantine Books, 1985.
- Moore Lappe, F. & Lappe, A. Hope's Edge: The Next Diet for a Small Planet. Jeremy P. Tarcher Publishing, 2003.
- Saunders, Kerrie (2003) The Vegan Diet As Chronic Disease Prevention: Evidence Supporting the New Four Food Groups
- Smil, V. Rationalizing Animal Food Production, in Feeding the World: A Challenge for the 21st Century, MIT Press, London, 2000. This provides evidence for the amount of grain required to raise livestock.
- Stepaniak, Joanne. (2000) The Vegan Sourcebook
- Torres, B. and Torres, J. Vegan Freak: Being Vegan in a Non-Vegan World. Tofu Hound Press. 2005. ISBN 0-9770804-1-2 (paperback).
- Walsh, S. Plant Based Nutrition and Health, The Vegan Society 2003, ISBN 0-907337-26-0 (paperback), ISBN 0-907337-27-9 (hardback).
- "Non-vegan prescriptions?" by Jo Stepianak, Grassroots Veganism, retrieved October 26, 2005
- "Anger over 'pig' secret of prescribed drug by Martin Shipman, The Western Mail, December 27, 2002, retrieved October 26, 2005
- FAQ, Vegan Resource Group, retrieved October 26, 2005
- Campbell, Colen T. and Campbell, Thommas M. The China Study, page 179, Benbella, 2005, ISBN 1-932100-38-5
Footnotes
- ^ "MEMORANDUM OF ASSOCIATION OF THE VEGAN SOCIETY" (PDF). About Us. Vegan Society. 1979-11-20. p. 1. Retrieved 2007-02-22.
{{cite web}}
: Check date values in:|date=
(help) - ^ "Criteria for Vegan food". Vegan Society. Retrieved 2007-02-17.
- ^ "Time/CNN Poll: Do you consider yourself a vegetarian?". Time Magazine. 2002-07-07. Retrieved 2006-10-30.
- ^ "Types and quantities of food consumed: Vegetarian/vegan" (PDF). National Diet & Nutrition Survey: Adults aged 19 to 64, Volume 1 2002. Food Standards Agency. pp. 11, 23. Retrieved 2006-10-30.
- "Donald Watson". Times Online. Times Newspapers Ltd. 2005-11-16. Retrieved 2006-09-15.
{{cite web}}
: Check date values in:|date=
(help) - ^ "Vegan Society: History". Vegan Society. Retrieved 2007-02-17.
- "Vegetarians in Paradise interview with Donald Watson". Vegetarians in Paradise Web Magazine. Vegetarians in Paradise. 2004-08-11. Retrieved 2006-10-31.
- "What is Vegan?". American Vegan Society. Retrieved 2006-09-15.
- "Introduction to Veganism". The Vegan Society of New Zealand. Retrieved 2006-10-30.
- "About Vegana". The Danish Vegan Society. Retrieved 2006-10-30.
- Is refined sugar vegan? Vegan Outreach FAQ.
- "Soap: Is it animal, vegetable, or mineral".
- "IVU FAQ: Ingredients". International Vegetarian Union FAQ. International Vegetarian Union. Retrieved 2006-10-30.
- "IVU FAQ: Ingredients 1: Gelatine". International Vegetarian Union FAQ. International Vegetarian Union. Retrieved 2006-10-30.
- "Is Gelatin Hiding in Your Food? Bone Up on Some Hidden Sources". Vegetarians in Paradise Web Magazine. Vegetarians in Paradise. Retrieved 2006-10-30.
- "Earthly Origin of Commercial Materials". Retrieved 2007-02-10.
- "Factory Farms". Why Vegan. Vegan Outreach. Retrieved 2006-09-15.
- "Cruelty to Animals: Mechanized Madness". GoVeg.com. People for the Ethical Treatment of Animals. Retrieved 2006-09-15.
- ^ "Position of the American Dietetic Association and Dietitians of Canada: Vegetarian diets". Journal of the American Dietetic Association. 103 (6): 748–765. 2003. doi:10.1053/jada.2003.50142. Retrieved 2006-09-15.
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ignored (help) - ^ Segelken, Roger (2001-06-28). "China Study II: Switch to Western diet may bring Western-type diseases". Cornell Chronicle. Retrieved 2006-09-15.
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(help) - ^ "China-Cornell-Oxford Project On Nutrition, Environment and Health at Cornell University". Division of Nutritional Sciences. Cornell University. Retrieved 2006-09-15.
- Henry, Susan O. "Milk: Is it Really Our Best Source for Calcium?". Americal Fitness Professionals & Associates. Retrieved 2006-09-15.
- Nicholson, Andrew (2005-02-15). "Diabetes: Can a Vegan Diet Reverse Diabetes?". Physicians Committee for Responsible Medicine. Retrieved 2006-09-15.
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: Check date values in:|date=
(help) - "OrganicAthlete's Pro-Activist Team". Retrieved 2006-10-30.
- "Vegetarian and Vegan Famous Athletes". Retrieved 2006-10-30.
- Lewis, Carl. "Carl Lewis on Being Vegan". Introduction to Very Vegetarian, by Jannequin Bennett. Retrieved 2006-10-30.
- "Relationship between fruit and vegetable consumption and decrease in CVD".
- "Possible protective effect of milk, meat and fish for cerebrovascular disease mortality in Japan". Japan Epidemiological Association. 1999-08-09. Retrieved 2006-09-15.
{{cite web}}
: Check date values in:|date=
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suggested) (help) - "Bovine Growth Hormone". EJnet.org. Retrieved 2006-09-15.
- Cohen, Robert. "52 good reasons to abandon milk and dairy!" (TXT). NOTmilk. Retrieved 2006-09-15.
- "How To Win An Argument With a Meat-Eater". VegSource Interactive, Inc. Retrieved 2006-09-15.
- Kradjian, Robert. "THE MILK LETTER : A MESSAGE TO MY PATIENTS". Americal Fitness Professionals & Associates. Retrieved 2006-09-15.
- "Vegan Health: Vitamin B12". veganhealth.org. Vegan Outreach. 2006-07-26. Retrieved 2007-02-23.
- ^ "Vegan Health: Bone Health". veganhealth.org. Vegan Outreach. 2007-01-09. Retrieved 2007-02-23.
- ^ P Appleby (2007). "Comparative fracture risk in vegetarians and nonvegetarians in EPIC-Oxford". European Journal of Clinical Nutrition. doi:10.1038/sj.ejcn.1602659. PMID 17299475. Retrieved 2007-02-25.
{{cite journal}}
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ignored (help) - "Vegan Health: Iodine". veganhealth.org. Vegan Outreach. 2006-12-26. Retrieved 2007-02-23.
- "Vegan Health: Fat". veganhealth.org. Vegan Outreach. 2007-02-20. Retrieved 2007-02-23.
- ^ "What every vegan should know about vitamin B12". Vegan Society. Retrieved 2007-02-22.
Vitamin B12, whether in supplements, fortified foods, or animal products, comes from micro-organisms.
- ^ "Vegans and Vitamin D". Vegan Society. Retrieved 2007-02-22.
- ^ Steven Walsh. "Nutrition: Iodine". Vegan Society. Retrieved 2007-02-23.
- "Healthy choices on a vegan diet". Vegan Society. Retrieved 2007-02-14.
- ^ Jack Norris, RD (2003-04-18). "Staying a Healthy Vegan". Vegan Outreach. Retrieved 2007-02-22.
There are no reliable, unfortified plant sources of vitamin B12; therefore fortified foods and/or supplements are necessary for the optimal health of vegans.
- ^ "Vitamin B12 Information Sheet". Vegetarian Society. Retrieved 2007-02-22.
is exclusively synthesised by bacteria and is found primarily in meat, eggs and dairy products. ... he present consensus is that any B12 present in plant foods is likely to be unavailable to humans and so these foods should not be relied upon as safe sources.
- ^ Jack Norris, RD (2005-07-22). "Vegan Health: Myth about How Often Someone Needs B12". veganhealth.org. Vegan Outreach. Retrieved 2007-01-02.
- "Vitamin B12 (cobalamin)". Merck Manual Home Edition. Retrieved 2006-10-30.
- Obeid R, Geisel J, Schorr H, Hubner U, Herrmann W. (2002). "The impact of vegetarianism on some haematological parameters". Eur J Haematol. 69 (5–6): 275–9. PMID 12460231.
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: CS1 maint: multiple names: authors list (link) - Reed Mangels, Ph.D., R.D. "Vitamin B12 in the Vegan Diet". Vegetarian Resource Group. Retrieved 2007-02-22.
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- "Don't Vegetarians Have Trouble Getting Enough Vitamin B12?". Physicians Committee for Responsible Medicine. Retrieved 2007-02-22.
- Jack Norris, RD. "Vegan Health: B12 in Tempeh, Seaweeds, Organic Produce, and Other Plant Foods". veganhealth.org. Vegan Outreach. Retrieved 2007-02-22.
- Jack Norris, RD. "Vegan Health: Are Intestinal Bacteria a Reliable Source of B12?". veganhealth.org. Vegan Outreach. Retrieved 2007-02-22.
- Kuhne T, Bubl R, Baumgartner R (1991). "Maternal vegan diet causing a serious infantile neurological disorder due to vitamin B12 deficiency". Eur J Pediatr. 150 (3): 205–8. PMID 2044594.
{{cite journal}}
: CS1 maint: multiple names: authors list (link) - Weiss R, Fogelman Y, Bennett M (2004). "Severe vitamin B12 deficiency in an infant associated with a maternal deficiency and a strict vegetarian diet". J Pediatr Hematol Oncol. 26 (4): 270–1. PMID 15087959.
{{cite journal}}
: CS1 maint: multiple names: authors list (link) - ^ Michelle Roberts (21 February 2005). "Children 'harmed' by vegan diets". BBC.
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: Check date values in:|date=
(help) - Danielsen, Christian (2005-03-02). "UCD professor's comments on vegan diet hotly debated". California Aggie. Retrieved 2006-10-30.
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: Check date values in:|date=
(help) - "Former Beatle Paul McCartney Calls GL-CRSP Nutrition Study 'Rubbish'" (PDF). Ruminations Newsletter. Spring 2005. Retrieved 2006-10-31.
- Left, Sarah (2005-02-21). "Raising children as vegans 'unethical', says professor". Guardian Unlimited. Guardian Newspapers Limited. Retrieved 2006-10-31.
- Farley, Dixie (1992-05). "Vegetarian Diets: The Plusses and the Pitfalls". FDA Consumer. Food and Drug Administration. Retrieved 2006-10-30.
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: Check date values in:|date=
(help) - Lucia Lynn Kaiser (2002-05-03). "Nutrition and lifestyle for a healthy pregnancy outcome". American Dietetic Association. Retrieved 2007-02-14.
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suggested) (help) - ADA’s Public Relations Team (2006-10-03). "The Vegetarian Mom-to-Be". American Dietetic Association. Retrieved 2007-02-14.
- "Information Sheet: Vegan Nutrition". Vegetarian Society. Retrieved 2007-02-22.
- K. North (2000). "A maternal vegetarian diet in pregnancy is associated with hypospadias". British Journal of Urology. 85 (1): 107–113. PMID 10619956.
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suggested) (help) - 'More girl babies' for vegetarians
- sexual development damage due to soya
- Steinman, G. (2006). "Mechanisms of twinning: VII. Effect of diet and heredity on the human twinning rate" (PDF, fee required). Journal of Reproductive Medicine. 51 (5): 405–10. PMID 16779988. Retrieved 2007-02-25.
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ignored (help) - Dedyna, Katherine (2004-01-30). "Healthy lifestyle, or politically correct eating disorder?". Victoria Times Colonist. CanWest MediaWorks Publications Inc. Retrieved 2006-10-30.
- O'Connor MA, Touyz SW, Dunn SM, Beumont PJ (1987). "Vegetarianism in anorexia nervosa? A review of 116 consecutive cases". Med J Aust. 147 (11–12): 540–2. PMID 3696039.
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: CS1 maint: multiple names: authors list (link) - Davis, Brenda. (2002). Becoming Vegan: The Complete Guide to Adopting a Healthy Plant-Based Diet. p.224. ISBN 1-57067-103-6
- "Meat-Eaters Aiding Global Warming?: New Research Suggests What You Eat as Important as What You Drive" (PDF). pp. 15–18. Retrieved 2006-10-30.
- "Livestock's Long Shadow–Environmental Issues and Options". Retrieved 2007-01-04.
- Shurtleff, William. "History of Tofu". LA Tofu Festival. Retrieved 2007-02-18.
- Jacobs, Leonard (1994). Cooking with Seitan: The Complete Vegetarian "Wheat-meat" Cookbook. Avery. pp. 5–6. ISBN 978-0895295996.
{{cite book}}
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suggested) (help) - "History of Tempeh". tempeh.info. Retrieved 2007-02-18.
- ^ "Vegan proteins". BBC Food. BBC. Retrieved 2007-02-23.
- ^ "Baking without eggs, milk and buttah". Post Punk Kitchen. Retrieved 2007-02-23.
- "Vegan Substitution for Egg Whites". Ochef.com. Food News Service. Retrieved 2007-02-23.
Q. What is a vegan substitute for egg whites? A. And the mystery ingredient is… flax seed.
- Bryanna Clark Grogan. "Vegan Meat Analogs, Dairy Substitutes, and Egg Alternatives". Bryanna's Vegan Feast. Retrieved 2007-02-23.
- "The role of religion in protecting the Earth (Jainism and the environment: precursors of modern ecology)". Forum 2004: Parliament of the World's Religions. Universal Forum of Cultures. 2004. Retrieved 2007-02-22.
Naresh Jain, Co-Chair of the Interfaith Committee of Jainism Associations in North America, said that the difference lies in Jainists' strict approach to the vegetarian (or vegan) diet. "Jainism is the only religion that materialises the ideal of non-violence through the vegan diet" he said.
- Jyoti Mehta. "Veganism and Hinduism". The Young Indian Vegetarians. Retrieved 2007-02-22.
- Campbell, M (1982). "Rastafarianism and the vegans syndrome". British Medical Journal. 285: 1617–1618. 1617–1618. Retrieved 2007-02-22.
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ignored (help) - Fraser, Gary (1999). "Associations between diet and cancer, ischemic heart disease, and all-cause mortality in non-Hispanic white California Seventh-day Adventists". American Journal of Clinical Nutrition. 70 (3). 532S-538S. Retrieved 2007-02-22.
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ignored (help) - Davis, S.L. (2001). "The least harm principle suggests that humans should eat beef, lamb, dairy, not a vegan diet." EurSafe 2001. Food Safety, Food Quality and Food Ethics. Proceedings of the Third Congress of the European Society for Agricultural and Food Ethics. pp 449-450.
- Davis S.L. (2003) "The least harm principle may require that humans consume a diet containing large herbivores, not a vegan diet". Journal of Agricultural and Environmental Ethics. (16)4. pp. 387-394.
- Gaverick Matheny (2003). "Least harm: a defense of vegetarianism from Steven Davis's omnivorous proposal". Journal of Agricultural and Environmental Ethics. 16: 505–511. doi:10.1023/A:1026354906892.
- Why I Am Not a Vegetarian By Dr. William T. Jarvis
See also
- List of vegans
- Raw veganism
- Vegetarianism
- Lacto vegetarianism
- Ovo vegetarianism
- Fruitarianism
- Raw food diet
- Freeganism
- Animal rights
- Farm Sanctuary
- China Study
External links
- General
- Vegan Society (UK)
- Vegan Action, US vegan product certification
- Vegan Outreach, creators of the popular "Why Vegan?" pamphlet
- American Vegan Society
- Vegan Society of Australia
- Movement for Compassionate Living (the Vegan Way)
- Health/Nutrition
- American Dietetic Association position on vegetarian diet
- The Vegan Society (UK) webpages on nutrition
- Physicians Committee for Responsible Medicine
- The Vegetarian and Vegan Foundation
- Ethical