The Truth About Negative Calorie Foods

You may have heard about so-called "negative calorie foods". However, the reality is that all foods contain calories so it really is impossible for a food to be negative in calories.

What Are Negative Calorie Foods?
These foods been defined as those that require more calories to digest than they contain. So while these foods don't actually contain negative calories, they do result in a calorie-burning effect in our bodies.
For example, one of the most commonly cited negative calorie foods is celery.