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. Each of these foods has fewer than 50 calories per 100 gram serving.


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. Total calories per 100g serving: 16


Oranges are known for their Vitamin C, but they’re also low in calories compared to other fruits. Total calories per 100g serving: 47


Lemons are great for flavoring up a glass of water, or sprinkling on top of fish and other foods to give them a bit of zest. They’re also an alkalizing food and contain antioxidants to keep you healthy.Total calories per 100g serving: 29


Cauliflower also limbos as one of the lowest ranking foods on the calorie chart. It’s also a cruciferous vegetable and has many healthy benefits to it, including being anti-inflammatory food, and helping the body’s cardiovascular and digestive systems. Total calories per 100g serving: 25


Watermelon has a low number of calories, despite being so naturally sweet. Watermelon has antioxidants that help your body in many ways. It’s also been shown to be able to boost your metabolism, just don’t go overboard on portion sizes.Total calories per 100g serving: 30


Tomatoes are one of the healthiest foods you can eat, and it’s only fitting that they come in low on the calorie radar. The lycopene they contain helps prevent cancer, and staves off heart disease. It also makes a great weight loss food because it has such few calories that you burn it off just getting it prepped for cooking. Total calories per 100g serving: 17

Grape fruit

Grapefruit is often pegged as diet food, a title it deserves seeing how it has been shown to rev up a sluggish metabolism, and is recommended to heart patients after surgery. Fruits in general tend to have more calories than vegetables.Total calories per 100g serving: 42


Apples can make a great snack between meals to hold you over, and keep you from eating junk food or fast food in a moment of hunger-induced weakness. Total calories per 100g serving: 50


Onions are used in so many recipes it’s good that they’re low in calories. Onions are often referenced as a healthy food that can help you reach your weight loss goals, and studies show that they contain flavonoids that help the body.Total calories per 100g serving: 40


Eating carrots to protect your eyesight is a good idea. They’re also a low glycemic food, so they can help you manage your blood glucose levels, and they are an all natural diuretic, so they can help rid your body of excess sodium and retained water. They’re also an anti-inflammatory food so they can be used to help treat inflammation in the body.Total calories per 100g serving: 41

Apart from these zero calories foods, there exists many fruits and vegetables that definitely helps you to get your body slim. So try the above listed fruits and stay healthier and happier with your beloved ones.