50 Food & Nutrition Myths You Need to Stop Believing

29/50 Previous Next

© Getty Images

29) Celery Contains Negative Calories

There is no such thing as "negative calories". There are, however, low-calorie foods, such as celery, which has about 6 calories in a medium stalk. While that number is incredibly low and makes it a great food to snack on guilt-free, that doesn't mean eating it burns more calories than it contains. In fact, the thermic effect of celery is 8%, but it needs 100% in order to qualify as a food with "negative calories." As it stands, there are no foods that are scientifically proven to be calorically negative.