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Nutritional Value of Green Onion

Updated on August 21, 2011

Green onion is an evergreen, edible plant that is widely used throughout the world. Green onion can be eaten alone, or used as seasoning in many dishes, it is not only rich in many nutrients, but also helps to increase appetite. The nutrients composition of green onion is as follow:

100 grams of green onion contain 126 kJ calories, 1.7 grams of protein, 5.2 g carbohydrate, 0.3 g fat, 10 mg vitamin A, 1.3 grams dietary fiber, 0.03 mg vitamin B1, 60 mg carotene, 17 mg vitamin C and 0.05 mg vitamin B2. The content of vitamin C in green onion is twice than in the orange, and 10 times higher than in the apple. Green onion is also an important source of selenium that needed by the body. Selenium is an essential trace element in the human body, it works as an important component of peroxidase and cell antioxidant and has a great relationship with our health. 

In addition, the green onion also contains volatile oils, the main ingredient of which is allicin, which has a strong bactericidal effect, especially for dysentery bacilli and skin fungi. Eating some green onions has preventive effect in combating respiratory infection diseases in winter and intestinal infectious diseases in summer.

Green onion can regulate immune system function. Scientists have discovered that eating green onion can make the blood cell to produce more interferon, thus enhancing our immune function and increasing resistance to disease.

Green onion is also very effective in the prevention of cardiovascular and cerebrovascular diseases. Regular consumption of green onion can soften blood vessel, which not only improves coronary blood circulation, prevents coronary heart disease, but also promotes brain blood circulation and prevents stroke and cerebral arteriosclerosis. Green onion can lower blood fat, prevent the occurrence of blood clots, lower blood cholesterol level, so as to prevent atherosclerosis. People who frequently eat onions have less deposition of cholesterol in their blood vessels. Green onion also contains a component called prostaglandins A, if consumed regularly, the accumulation of prostaglandins A will play the role of promoting blood circulation and thus help control dizziness caused by high blood pressure.

Eating green onions can promote digestion and secretion and improve digestive function, which is very helpful to human health.

Green onions contain volatile compounds with antimicrobial effect that can kill bacteria. 

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