The theory of negative calorie foods, also called the “fat-burning food”, is based on some foods contain fewer calories than they need to be digested, then eating them, they lose weight.
For example, if you eat 40 grams of celery, which contains 7 calories, your body may burn 30 calories to digest. Therefore, net consume 23 calories, losing weight.
This type of fat burning foods are negative calorie or vegetables such as lettuce, onion, asparagus, or fruit such as mandarins, lemons, apples.
Among the foods with “negative calorie” are:* Celery
* Oranges
* Strawberry
* Grapefruit
* Carrots
* Lettuce
* Lemons
* Tomato
* Cucumber
* Watermelon
* Cauliflower
* Apples
* Zucchini
* Asparagus
This theory is based upon the book “Foods That Cause You to Lose Weight: the Negative Calorie Effect” by Neal Barnard.
These ideas are the subject of very controversial opinions. Robert Eckel, a professor of medicine at the University of Colorado nutritionist, thinks the concept is “ridiculous,” defying the principles of science, ensuring that there is no food that can be associated with a loss of energy.
In contrast, this theory has a great host many sites on the Internet with diets advocating negatives calorie foods. Anyway, all these foods are excellent antioxidants tested and very healthy.