Onion is rich in nutrition, not only containing potassium, vitamin C, folic acid, zinc, selenium, fiber and other nutrients, but also containing two special nutrients-quercetin and prostaglandin A.

Onion is a very common and cheap home-cooked dish. Its meat is tender, its juice is spicy and light, its quality is good, and it is suitable for raw food. Originated in West Asia, it is cultivated in all parts of China and supplied all the year round. Abroad, it is known as the "queen of vegetables" and has high nutritional value.

Onion also contains diallyl sulfide, which can prevent arteriosclerosis and reduce blood lipid. Quercus substances can also be detected in onion, and flavanone-induced glycoconjugates have diuretic and repercussive effects, which are beneficial to prevent obesity, hyperlipidemia and arteriosclerosis.

Extended data:

The efficacy of onion

1, stimulate appetite and help digestion

Onions contain allicin, which has a strong aroma. When processing, it often makes people cry because of its pungent smell. It is this special smell that can stimulate gastric acid secretion and increase appetite. Onions can improve gastrointestinal tension and promote gastrointestinal peristalsis, thus playing an appetizing role.

2. Sterilization and cold resistance

Onion contains phytoncide, such as allicin, which has strong bactericidal ability and can effectively resist influenza virus and prevent colds. When this phytoncide is excreted from the body through the respiratory tract, urinary tract and sweat glands, it can stimulate the secretion of cell wall in these positions.

References:

Baidu encyclopedia-onion