Believe it or not, each time we eat any kind of food, we also burn calories. This is done when we need to digest the food; you see, for every activity we do, we need to spend part of our "fuel" (in these case calories), and digesting is no exception, since our intern organs are working hard to process the food for us.

Although we burn some calories, usually, they are not enough to keep us lean, so for example we eat a zillion-calories cheeseburger - but we only burn 100 calories for digesting it. That doesn't sound very helping, I know.

BUT, with negative calorie foods, we end up burning more calories than the number we get. So for example if you eat something with 100 calories, it will burn 150 calories, thus, leaving you with -50 negative calories! By the way, these numbers only serve to help you understand the point, I'm not talking about a food in particular.

So why isn't everybody eating these kind of foods all day?

The answer to this question is pretty important: because they don't provide essential nutrients. A diet is not just a bunch of calories - if it were like this, things could be much, much simpler - instead, we need to get our portions of proteins, fats and carbohydrates to keep our bodies running healthy.

Okay, I know you are anxious to check the list of negative calorie foods, so here they are a few of them to help you when you want to eat something without gaining more calories:

FRUITS: Grapefruit, mango, watermelon, papaya, cranberries, apples, blueberries, cantaloupe.

VEGETABLES: Onion, garlic, zucchini, celery, cauliflower, broccoli, radish, spinach, asparagus, cucumber, lettuce, among others.

Learn all about fat burning foods and how to use them effectively with The Truth About Six Pack Abs.

While you are in My Stomach Exercises be sure to add our RSS feed for tips and more product reviews.