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Negative Calorie Foods: Can You Really Increase Your Metabolism By Eating More?

The “thermal” effects of food, i.e. that eating foods can increase calories burned, has been a popular Internet subject. Consequently there is a lot of misinformation. The theory is that you can lose weight by eating lots of these negative calorie foods and thus speed up your metabolism. Proponents claim, for example, you will burn 80 calories digesting a 25-calorie piece of broccoli, for a net loss of 55 calories. Celery is another commonly cited example of a negative calorie food because it's made mainly of water and cellulose, an indigestible vegetable fiber. Other foods sometimes labeled as negative calorie include asparagus, berries, cauliflower, grapefruit and cabbage. These very low calorie foods do require a large amount of energy to digest compared with the amount of calories they provide, however, this does not mean that it is significant enough to result in weight loss.

Here is a List of Foods, Where the Energy to Digest Them, Might Exceed the Total Calories:

•Salsa

•Hot Peppers-Cayenne peppers

•Ice Water, green tea, apple cider vinegar drinks

•Cabbage, Celery

•Brussel Sprouts

•Broccoli and Cauliflower

•Lemon or Vinegar

•Vinaigrette Dressing

•Grapefruit, Berries

•Fish

All of these can help in any weight loss plan because of the bulk they provide. But they are not a magic bullet for weight loss. Some of the speed up of metabolism seen in the HCG diet may be due to the fact that all of these foods are used in large amounts in this diet.