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1 The basics
2 Foods
2.1 Notes
3 Criticisms
4 References
5 See also
6 External links
[edit] The basics
In a negative calorie diet and several versions of this diet, ostensibly, dieters are to eat and drink food products that are nutritious but are said to have a negative caloric effect; i.e., provide fewer food calories than the calories needed to digest them. The energy that the body needs to digest the food is usually given as a certain amount of calories, whilst the energy content of the food is given as kilocalories - often written "Calorie". [1]
[edit] Foods
The "negative calorie" foods allowed in this diet are mainly vegetables and fruits. Foods that have been claimed to "contain" negative calories include [1] :
Apples
Asparagus
Beets
Blueberries
Broccoli
Cantaloupes
Carrots
Cauliflower
Celery stalk
Celery root
Chicory
Chili peppers
Cranberries
Cucumbers
Dandelions
Endives
Garden cress
Garlic
Grapefruit
Green beans
Green cabbage
Lamb's lettuce
Lemons
Lettuce
Mangos
Onions
Oranges
Papayas
Pineapples
Prunes
Radishes
Raspberries
Spinach
Strawberries
Tangerines
Tomatoes
Turnips
Zucchini
[edit] Notes
The effectiveness of the above foods are linked to their nutritional value. One of the most often mentionned negative calorie foods is celery, due to its' extremely low nutritional value.
Although not usually considered a food, ice cubes have been used as a negative calorie source, in that water contains no calories in the first place, and the body must expend energy to compensate for the slight decrease in temperature it experiences as the ice is consumed.
Certain sugar-free juices and broths have also been claimed to contain negative calories.
Some fasts feature body cleansing mixtures, which typically contain negligible amounts of calories.
[edit] Criticisms
This diet is criticized as basing its main premise on unsound science. There is much debate about the factual existence of negative calories; there is also controversy surrounding whether it is possible for a food to contain "negative" calories. Factually, the only foods which could genuinely and without qualification fall into this category are cellulose and water, the belief being that the action of the esophagus, stomach, intestines, etc. to move these substances through the system would burn a small amount of calories. Water contains zero calories and the calories in cellulose are inaccessible to humans due to the lack of a cellulase enzyme.
Aside from the factual dispute of whether negative calorie foods exist, some also criticize that such dieters use the concept of negative calories to justify eating unlimited quantities of such foods, and that doing so is not healthy. Similarly, although some of the foods mentioned are traditionally considered to have fair nutritional value, others may contain very little, or lack certain nutrients, which may lead to malnutrition.
[edit] References
^ Free List of Negative Calorie Foods
[2]
[edit] See also
Crash diet
Negative calories
Raw foods diet
[edit] External links
Negative Calorie Diet: Diet Review
Retrieved from "http://en.wikipedia.org/wiki/Negative_cal
orie_diet"
Categories: Accuracy disputes | Diets | Fasting
searching them out to make sure they are pertinent.[/quote]
I don't know why that link did not work, but I went and copied the article. Not all raw foods are negative calorie foods, and not all negative calorie foods are listed above. I think it takes energy to digest the "negative calorie" foods because of there water, fiber, and phytochemical content.