What is a negative calorie food you say? You see there is no such thing as a negative calorie.

Let me explain - a calorie is a unit of heat and it cannot be negative. So when people talk about negative calorie foods. They are talking about foods whose calorie level is so low that it takes more energy to eat and digest it.

Take cold water for instance, it contains no calories at all, but the body has to expend energy to bring it up to blood temperature. Therefore, every time you drink a glass of cold water. You burn a few calories and lose a little weight. There are very few foods like this.

Below are a list of some negative calorie foods to help in your weight loss efforts. A lot of the foods on the list below do not really use more calories than they add, if they do it is minimum. Our body is always expending energy just to keep us alive and breathing.