The main nutrients of green onion are protein, sugar, pro-vitamin A (mainly contained in green onion leaves), dietary fiber, and minerals such as phosphorus, iron, and magnesium.

Raw green onions contain diallyl sulfide, which can stimulate the secretion of gastric juice and help improve appetite.

The leafy part of the green onion contains more carotenoids, etc. than the white part of the green onion.

Scallions contain a considerable amount of vitamin C, which has the effect of diastolic microvascular, promote blood circulation, can improve the dizziness caused by elevated blood pressure.

Regularly eat green onions, can reduce the body's cholesterol content, enhance physical fitness, green onions contain trace elements of selenium, can reduce the content of nitrites in the gastric juice, on the prevention of gastric cancer and a variety of cancers have a certain role.

Scallions contain stimulating odor volatile oil and chorine, can get rid of fishy and other greasy thick taste dishes in the odor, produce a special aroma, and has a strong bactericidal effect.

Scallion volatile chorine in the sweat glands, respiratory tract, urinary system discharge, can slightly stimulate the secretion of the relevant glands, play sweating, expectorant, diuretic effect.

People with gastrointestinal diseases, especially ulcer disease, should not eat more green onions.

Scallion on the sweat gland stimulation effect is strong, people with armpit odor in the summer should be careful to eat; table deficiency, sweating should also be avoided.

Scallions can play a sweating, expectorant, diuretic effect, is the treatment of colds one of the Chinese medicine.