The theory behind zero calorie or negative calorie foods is that they contain such a scant amount of calories that the energy you expend eating them cancels out their calories. In essence the bottom line is that you don’t take on any excess calories, and in some instances you end up burning calories as you eat them. Whether or not this is an accurate statement, it’s clear that the following foods have such a slight caloric load they won’t put a dent in your daily total.
Celery is a food that when you eat it you don’t really feel like you’re eating anything, so it’s not a total shocker to find out that it has essentially zero calories. The stringy nature of celery makes it seem as if it only exists to hold the water it contains. What you’ll typically see is celery with peanut butter or cream-based fillings inside of it, and you’ll want to avoid those if you are keeping track of calories, as they can swing it back the other way quite quickly.
Total calories in 100 grams: 16
Oranges are known for their Vitamin C, but they’re also low in calories compared to other fruits. Whether or not you expend the total number of calories while eating oranges is debatable, but the point of eating foods this low in calorie is not to cancel out the calories, but to keep your total caloric load for the day lower than normal. You’re trying to create a caloric deficit, and an orange can help reach that goal.
Total calories in 100 grams: 47
Cabbage often gets brought up for its ability to prevent cancer and heart disease, and it often ranks on lists of foods that help with weight loss. That’s because it has a calorie count so low you end up burning it off just by going about the normal motions of your day. Cabbage soup is one great way to eat cabbage, as it is a filling meal while containing far fewer calories than most soups.
Total calories in 100 grams: 25
Asparagus shows up as a side dish to many meals, and is a great choice because its fibrous nature means it will satisfy your hunger, but the number of calories makes it so it doesn’t add much to your daily total. Eating asparagus fresh on a salad is a crunchy and satisfying treat, while grilling it or steaming it are the two best cooking methods. Be sure to go easy on the butter or oil, as that will bring the calorie count right back up.
Total calories in 100 grams: 20