A zero calorie food requires about the same amount of calories to be processed in the body as the food has to offer. There is no study to prove that this is 100% true, though I believe that given their very low calorie content it is very possible that the stomach uses more energy to digest them than they provide. Most of them are also called negative calories, but I wouldn’t go that far. The only thing I believe in is that water normally contains 0 calories, but when consumed ice cold, the body spends more calories to warm it up at the same temperature as blood. I read a research showing that indeed you lose more calories drinking ice cold water, but it isn’t magic. You won’t lose too many calories this way.
Even though the fact that they have zero calories isn’t scientifically proven, these foods contain a lot of fiber, vitamins and minerals, and are extremely low in calories. Many of them are packed with antioxidants, which help burn fat and are natural metabolism boosters. You can eat them every day, in large quantities, and lose weight at the same time.
- Celery – source of fiber, vitamin C, K and A, anti-inflammatory, antioxidant abilities; 100 g – 16 calories
- Grapefruit – 60% water, potassium, vitamin A and C, folic acid, contains pectin which makes you feel full longer, boosts metabolism, lowers cholesterol; 100g – 42 calories
- Pineapple – loaded with vitamin C, but also contains manganese, copper, vitamin B6 and B1, an excellent source of fiber, antioxidant, anti-inflammatory, digestive benefits, supports the immune system; 100g – 48 calories
- Apples – contain phytonutrients that regulate your blood sugar, good source of fiber, vitamin C, prevent heart disease, antioxidant, anti-cancer; 100g – 52 calories
- Watermelon – the crowd pleaser, sweetest food on the list, high percentage of water, low calories, rich in vitamin B, antioxidants, metabolism booster, 100g – 30 calories
- Blueberries – packed with antioxidants, vitamin C, improves heart health, fights against cancer, metabolism boosters; 100g – 57 calories
- Oranges – source of magnesium and potassium, vitamin C, B-complex, phytochemicals that have anti-inflammatory properties and boost the immune system; 100g – 47 calories
- Lemon – source of vitamin C, folate, antioxidants, antibiotic effects; 100g – 29 calories
- Hot peppers – metabolism booster, helps digestion, reduces appetite, fights cold, cancer, obesity, headaches, psoriasis, etc.; 100g – 40 calories
- Tomatoes – cancer fighters, fiber, potassium, vitamin E, C, beta-carotene; 100g – 17 calories
- Cucumbers – anti-inflammatory effects (aren’t they used in the spa, ladies?), rich in vitamin A, B1, B6, C and D, Calcium, Magnesium, Potassium, high percentage of water; 100g – 16 calories
- Asparagus – contains Calcium, fiber, folate, vitamins A,C, K, E, chromium, antioxidants, diuretic, anti-aging properties; 100g – 20 calories
- Carrots – natural diuretic, source of vitamin A (improves vision), rich in fiber, anti-inflammatory, prevents cancer, anti-aging properties, prevents heart disease and detoxes the body; 100g – 41 calories
- Broccoli – very rich in fiber, vitamins, minerals, immunity booster, contains phytonutrients, reduces cancer risk; 100g – 34 calories
- Cabbage – very rich in fiber, vitamins, minerals, helps prevent cancer and heart disease, 100g – 25 calories
- Zucchini – rich in vitamin C (antioxidant), manganese, lowers cholesterol, prevents cancer, maintains the health of the heart and eyes, lowers blood pressure; 100g – 17 calories
- Cauliflower – rich in vitamin C and a lot of other vitamins and minerals, anti-inflammatory, prevents cancer, detoxes the body; 100g – 25 calories
- Spinach – full of iron, vitamin K, vitamin C, folic acid, calcium, prevents cancer, lowers blood pressure, promotes a healthy digestion; 100g – 23 calories
- Lettuce – contains fiber and cellulose, which help weight loss, proteins, vitamin K, A, folate, manganese, potassium; 100g – 17 calories
- Radish – aids digestion, prevents cancer, high content of vitamin C, antioxidant; 100g – 16 calories
Other zero calorie foods: papaya, peaches, cranberries, clementines, rhubarb, guava, turnips, leek, beets.
You can also check another similar post of mine, super foods for weight loss.