There are food take more calories to digest, than they add, if you eat them, you would be on a - Negative Calories Diet
Eat all you want, is it possible, and can help you to lose weight fast. A negative calorie food is a food that is purported to require more calories to be digested than it provides. That is, its thermic effect is greater than its calorie content.
While this concept is popular in dieting guides, there is no scientific evidence that any of the foods claimed as negative calorie foods are such. Celery, a commonly cited negative calorie food, actually requires only about 10% of its calorie content to be digested (due to the thermic effect). The consumption of grapefruit, another commonly cited food, leads to weight-loss simply by taking up space in the stomach that might otherwise go to higher calorie foods. However, zero-calorie beverages, including water and ice water, do take more than zero calories to process.
How to Spike the Metabolism?
This is the goal of negative calorie foods, however there are many type of situations that spike the Metabolism
Negative Calorie Diet Food: It is claimed people can eat all they want, and not gain weight, although that is questionable, if you restrict your diet to these foods, you will error on the side of weight loss.
The Negative Calories Diet : Eat all you want of this list of food, you should lose weight. Please make comments or clarify at the bottom of this page.
Negative Calorie Vegetables
Negative Calorie Fruits
Spicy Foods Spike Metabolism
By speeding up your heart rate. A study from the late '80s found that eating a single spicy meal can boost your metabolism by up to 25 percent, with the spike in calorie burning lasting for up to 3 hours after you finish eating
There are foods that do not digest in the body, they may give you a temporary feeling of fullness, and shut of the emotional triggers to eat.