Efficacy and function of onion
1. Onions are rich in nutrition and have a spicy smell. It can stimulate the secretion of stomach, intestine and digestive gland, stimulate appetite and promote digestion. Onion contains no fat, and its essential oil contains mixed sulfide, which can reduce cholesterol and can be used to treat dyspepsia, anorexia, dyspepsia and other symptoms.
2. Selenium, a trace element contained in onion, has a strong antioxidant effect, can scavenge free radicals in the body, enhance cell vitality and metabolic capacity, and has anti-cancer and anti-aging effects.
3. Onions have the function of dispelling cold. This is because onion bulbs and leaves contain a volatile oil called propylene sulfide, which has cold tolerance and strong resistance to influenza virus.
Onion contains a substance called quercitrin, which is one of the most effective natural anticancer substances known at present. It can prevent the biochemical mechanism of variation in vivo, thus controlling the growth of cancer cells, thus playing an anti-cancer role.
5. Onion contains phytoncide such as allicin, so it has strong bactericidal ability. Eating raw onions can prevent colds.
6. Onions have a certain refreshing effect, which can help cells make better use of glucose, reduce hypoglycemia and supplement the heat energy of brain cells. It is a good diet for patients with diabetes and listlessness.
7. Onions also contain some calcium. In recent years, Swiss scientists have found that eating onions regularly can improve bone density and help prevent osteoporosis.
8. Onion is the only known substance containing prostaglandin A. Prostaglandin A can dilate blood vessels and reduce blood viscosity, thereby lowering blood pressure, reducing peripheral blood vessels, increasing coronary blood flow and preventing thrombosis. It can resist the action of pressor substances such as catecholamine in human body, promote the excretion of sodium salt, and thus lower blood pressure. Regular consumption has a health care effect on patients with hypertension, hyperlipidemia and cardiovascular and cerebrovascular diseases.
Suitable for onion people
1, hypertension, hyperlipidemia, arteriosclerosis and other cardiovascular diseases, diabetes, cancer, acute and chronic enteritis, dysentery, dyspepsia and other people are particularly suitable.
2. People with itchy skin, eye diseases and stomach diseases should eat less, and people with lung and stomach inflammation should eat less. In addition, onions are pungent and warm, and patients with fever should be careful to eat them.
3, onions should not be eaten too much at a time, which may easily lead to eye paste and fever.
4. The spicy taste contained in onion irritates eyes. When suffering from eye diseases and bloodshot eyes, it is not advisable to cut onions.