| Revision as of 20:23, 7 September 2005 editBlaiseFEgan (talk | contribs)Extended confirmed users2,917 editsNo edit summary← Previous edit | Revision as of 03:14, 8 September 2005 edit undoGene Nygaard (talk | contribs)Extended confirmed users90,047 edits revert. Small calories have never been used here, except for the incongruous calling of food calories "kilocalories", addition didn't expalin well and used strange capitalization, etcNext edit → | ||
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| Food energy is typically measured in units of ]s, although the ] unit ''kilojoule'' (1000 ]s) is becoming more common. Some types of food contain more ] than others; ]s and ]s have particularly high food energy levels. | Food energy is typically measured in units of ]s, although the ] unit ''kilojoule'' (1000 ]s) is becoming more common. Some types of food contain more ] than others; ]s and ]s have particularly high food energy levels. | ||
| Note that the "calorie" used by dieticians for food is sometimes called a kilocalorie; it is equal to 4.1868 kilojoules. | |||
| Two confusingly similar units have traditionally been used to quantify food energy. The 'calorie' (lower case 'c') equal to 4.1868 Joules and the 'Calorie' (upper case 'C') equal to 4.1868 kiloJoules. Best practice is now to avoid the use of the Calorie altogether and refer to it as a kilocalorie. | |||
| == Energy content == | == Energy content == | ||
| * ''']''' contains '''4 ]''' per gram | * ''']''' contains '''4 ]''' per gram | ||
Revision as of 03:14, 8 September 2005
Food energy is the amount of energy in food.
Food energy is typically measured in units of calories, although the International System of Units unit kilojoule (1000 joules) is becoming more common. Some types of food contain more energy than others; fats and sugars have particularly high food energy levels.
Note that the "calorie" used by dieticians for food is sometimes called a kilocalorie; it is equal to 4.1868 kilojoules.
Energy content
- Protein contains 4 kcal per gram
- Carbohydrates contains 4 kcal per gram
- Fat contains 9 kcal per gram
- Alcohol contains 7 kcal per gram
See also
- energy
- food chain
- screaming jelly babies experiment showing food energy.