Foods That Are Essentially Calorie-Free

Apples have 57 calories per 100 grams. Dietary fiber will be around three grams.

Apples

A medium tomato has 22 calories. Due to their high water content and antioxidant content, they have few calories.

Tomatoes

For a tasty treat, strawberries have little calories. Strawberry cups (152 grams) have 50 calories.

Strawberries

Despite their different kinds, onions have similar calorie counts. The average 100-gram medium onion has 44 calories.

Onions

Bell peppers are low-calorie. Chopped red bell pepper (150 grams) has 46 calories per cup.

Bell Pepper

Carrots have 53 calories per cup. Beta-carotene, which turns into vitamin A, is abundant.

Carrots

Spinach is rich in vitamins K and A. It has more protein than other green veggies. Spinach (30 grams) has seven calories per cup.

Spinach

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