Editing Calorie (section)

===Food energy===
The unit is most commonly used to express [[food energy]], namely the [[specific energy]] (energy per mass) of metabolizing different types of food.  For example, [[fat]] (triglyceride lipids) contains 9&nbsp;kilocalories per gram (kcal/g), while [[carbohydrate]]s (sugar and starch) and [[protein (nutrient)|protein]] contain approximately 4&nbsp;kcal/g.<ref name=SciAm/> Alcohol in food contains 7&nbsp;kcal/g.<ref>{{Cite web|url=http://www.nutristrategy.com/nutrition/calories.htm|title=Calories - Fat, Protein, Carbohydrates, Alcohol. Calories per gram|website=Nutristrategy }}</ref> The "large" unit is also used to express recommended nutritional intake or consumption, as in "calories per day".

[[Dieting]] is the practice of [[eating]] food in a regulated way to decrease, maintain, or increase [[body weight]], or to prevent and treat diseases such as [[diabetes]] and [[obesity]]. As weight loss depends on reducing caloric intake, [[List of diets|different kinds]] of [[Calorie restriction|calorie-reduced]] diets have been shown to be generally effective.<ref name="Strychar">{{Cite journal |last=Strychar |first=I. |date=3 January 2006 |title=Diet in the management of weight loss |journal=Canadian Medical Association Journal |volume=174 |issue=1 |pages=56–63 |doi=10.1503/cmaj.045037 |issn=0820-3946 |pmc=1319349 |pmid=16389240}}</ref>