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* ''']''' contains '''4 kcal''' per gram | * ''']''' contains '''4 kcal''' per gram | ||
* ''']''' contains '''9 kcal''' per gram | * ''']''' contains '''9 kcal''' per gram | ||
* Alcohol contains 7 kcal per gram | * ''']''' contains '''7 kcal''' per gram | ||
==See also== | ==See also== |
Revision as of 11:15, 27 August 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.