Have you heard about foods that have negative caloric effect? The theory is that they burn more calories during the digestive process that they contribute, that is, negative calorie food requires more food energy to be digested than the food provides. Its thermic effect would be greater than its food energy content. Sound fascinating, doesn’t it?
There is no scientific evidence that supports the existence (and effect) of these foods. So in a way negative calorie foods are a myth. In a way. Because, there are foods that are close to these “super foods”, and they are incredibly low-calorie and very nutritious.
Which are they?
Below you will find a list of 7 best “replacements” for the negative calorie foods. The list is created by the number of calories they have (also includes drinks):
1. Coffee: 0 calories per cup – probably the lowest-calorie drink available. Caffeine in coffee can speed up metabolism, decrease the risk of diabetes and obesity. Black coffee alters the levels of gut peptides – hormones in our body which regulates hunger or fullness.
2. Tea: 0 calories per cup – almost all tea’s (preferably black or green) are rich in polyphenols, antioxidant which protects the DNA cells from damage. Tea can also lower the bad cholesterol, prevent osteoporosis and keep your figure thin.
3. Arugula: 4 calories per cup – one of the healthiest foods on the planet. High on vitamins A, C & K, fiber and potassium, low on cholesterol, calories, fat and saturated fat. Studies suggest that the minerals and antioxidants found in this green vegetable can improve your sexual health, because they help block absorption of toxins that dampen the libido.
4. Watercress: 4 calories per cup – this vegetable contains large amounts of sulfophane, ingredient that prevents the risks of various types of cancer (most notable lung cancer).
5. Lettuce: 5 calories per cup – lettuce, particularly roman lettuce, is source of manganese, folic acid and vitamins – ingredients that regulate the blood sugar and the immune system.
6. Kale: 5 calories per cup – great source of vitamins B, manganese, folic acid and is very close to the “super foods” discussed above. It has wide variety of phytonutrients which can prevent cancer, specifically breast cancer. These phytonutrients can prompt the liver to start producing enzymes that neutralize potentially cancer-causing substances.
7. Spinach: 7 calories per cup – rich with vitamins C & K, folic acid, iron, beta carotene and phytochemical lutein. The latter ingredient protects the eyes from macular degeneration (which increases as people age).