Q&A
Negative Calorie Foods
Question:
My friend keeps raving about her "negative calorie" diet. I don't see how food can have fewer than zero calories, but she claims that it works -- she lost 10 pounds! Is it too good to be true?
You're right: There's no such thing as a negative-calorie food, as all foods contain calories, a measure of energy. Rather, the idea behind a negative-calorie diet is an overall negative-calorie effect, i.e. eating foods that supposedly contain fewer calories than the amount your body would expend to digest them.
Asparagus, apples, berries, broccoli, cantaloupe, carrots, cauliflower, celery, cucumbers, fennel, leek, onions, oranges, papaya, pineapple, spinach, turnip and zucchini are a few examples of these so-called negative foods.
So will a negative-calorie diet help you lose weight? Well, there is no conclusive proof that eating negative-calorie foods can facilitate weight loss. But they certainly can't hurt your diet: All of these foods are low-calorie, low-fat and loaded with vitamins, nutrients and minerals, so you can eat your fill without guilt.
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