Calories provide the energy that your body needs to function and stay alive.
While there is no evidence to support that negative-calorie foods burn more calories than they provide, foods that are already low in calories may actually provide fewer calories than expected. This is because your body uses energy to digest them.
If you’re trying to decrease your total calorie intake, eating more low-calorie foods, such as certain fruits and vegetables, is an easy way to achieve that goal.
Apples are highly nutritious and one of the most popular fruits in the United States, according to USDA’s Economic Research Service .
One cup (125 grams) of apple slices has 57 calories and almost three grams of dietary fiber.
Since your body has to burn energy to digest apples, the net amount of calories provided by this fruit is probably fewer than reported.
Carrots are very popular vegetables. They’re usually thin and orange, but can also be red, yellow, purple or white.
Most people associate good eyesight with eating carrots since they’re rich in beta-carotene, which can be converted to vitamin A. Getting enough vitamin A is necessary for proper vision.
A one-cup serving (128 grams) of carrots has only 53 calories and over 400% of the DV for vitamin A
Cucumbers are a refreshing vegetable commonly found in salads. They’re also used to flavor water along with fruits and herbs.
Since cucumbers are mostly water, they’re very low in calories — one-half cup (52 grams) only has 8 calories
Garlic has a strong smell and taste and is used widely in cooking to add flavor to dishes.
Garlic has been used for centuries as a remedy for various illnesses. Research suggests that it may decrease blood pressure and fight infections or even cancer.
One clove (3 grams) of garlic has only 5 calories.
Grapefruits are one of the most delicious and nutritious citrus fruits. They can be enjoyed on their own or on top of yogurt, salad or even fish.
Certain compounds in grapefruit may decrease cholesterol levels and increase metabolism.
There are 52 calories in half a grapefruit (123 grams).
Lemons and Limes
The juice and zest of lemons and limes are widely used to flavor water, salad dressings, marinades and alcoholic drinks.
Citrus does more than just add flavor. Research shows that lemon juice has compounds that can act as antioxidants to fight and prevent diseases in your body.
One fluid ounce (30 grams) of lemon or lime juice has only 8 calories
Mushrooms are a type of fungus with a sponge-like texture. Vegetarians and vegans sometimes use them as a substitute for meat.
Mushrooms contain several important nutrients and have only 15 calories per cup (70 grams)
Onions are a very popular vegetable. Varieties of onions include red, white and yellow, as well as spring onions or scallions.
Even though the taste differs depending on the type, all onions have very few calories — one medium onion (110 grams) has approximately 44
Peppers come in many colors, shapes and sizes. Popular types include bell peppers and jalapeños.
Research shows that bells peppers are particularly high in antioxidants and may protect the body from the damaging effects of oxidation
There are only 46 calories in one cup (149 grams) of chopped, red bell peppers
Papaya is an orange fruit with black seeds that resembles a melon and is typically grown in tropical regions.
It’s very high in vitamin A and a good source of potassium. One cup (140 grams) of papaya has only 55 calories
As its name suggests, watermelon is a very hydrating fruit. It tastes delicious on its own or paired with fresh mint and feta.
Watermelon contains some of almost every nutrient and a high amount of vitamin C. There are 46 calories in one cup (152 grams) of diced watermelon.