How many calories are in asparagus?

One cup of raw asparagus contains about 27 calories and less than one gram of fat. It also contains no cholesterol, nearly 3 grams of fiber and 3 grams of protein.

Asparagus contains a multitude of nutrients, including folate and vitamins A, C, E and K. It also contains chromium, a mineral that supports the ability of insulin to shuttle glucose from the bloodstream into the body's cells, where it can be used for energy. Eating asparagus may help protect against some forms of cancer, such as breast, bone, colon and larynx cancers, due to glutathione, a compound that helps rid the body of carcinogens and harmful substances, such as free radicals.