Where can you find a zero-calorie food list?

While foods with zero calories do not actually exist, there are foods that contain so few calories they are considered nearly calorie-free. Listings of "zero-calorie" foods are given on the websites WebMD.com and Health.com.

The notion of "zero-calorie" foods comes from foods with so few calories that the energy used to consume them cancels out the calories they contain. Calorie-free foods are those with 25 calories or fewer per serving. These commonly include foods such as celery stalks, cucumbers and frozen vegetables. Almost calorie-free foods refers to foods that have 26 to 60 calories per serving. These include foods such as grapefruits, apricots and rice cakes.