What are the effects and functions of onions

Onion is a food ingredient we are very familiar with. The unique smell and nutritional value of onion have certain effects on digestion, intestine moistening, expectoration, diuresis and sweating. Onion can be eaten as a health food ingredient. There are many ways to eat onions when cooking. They can be eaten raw, fried, or served cold. Onions can also be combined with many other ingredients to make delicious dishes.

What are the effects and functions of onions? 1. Onions are rich in nutrients and have a spicy smell. It can stimulate the secretion of the stomach, intestines and digestive glands, increase appetite and promote digestion. Onions do not contain fat, and their essential oil contains a mixture of sulfur-containing compounds that can lower cholesterol. It can be used to treat indigestion, loss of appetite, food stagnation and other symptoms.

2. The trace element selenium contained in onions is a very strong antioxidant that can eliminate free radicals in the body, enhance cell vitality and metabolic capacity, and has anti-cancer and anti-aging effects. 3. Onions have the effect of dispersing wind and cold because onion bulbs and leaves contain an oily volatile substance called propylene sulfide, which has a spicy taste. This substance can resist cold, resist influenza virus, and has a strong bactericidal effect.

4. Onions contain a substance called quercetin9, which is one of the most effective natural anti-cancer substances known to date. It can prevent the biochemical mechanisms in the body from mutating and control the growth of cancer cells, thus having anti-cancer effects. 5. Onions contain phytoncide such as allicin, so they have strong bactericidal ability. Chewing raw onions can prevent colds. 6. Onion has a certain refreshing effect. It can help cells better utilize glucose, while lowering blood sugar and supplying heat energy to brain cells. It is a good vegetable for patients with diabetes and mental depression. 7. Onions also contain a certain amount of calcium. In recent years, Swiss scientists have discovered that eating onions regularly can increase bone density and help prevent and treat osteoporosis. 8. Onion is the only food known to contain prostaglandin A. Prostaglandin A can dilate blood vessels and reduce blood viscosity, thereby lowering blood pressure, reducing peripheral blood vessels and increasing coronary blood flow, and preventing thrombosis. It can counteract the effects of pressor substances such as catecholamines in the human body and promote the excretion of sodium salt, thereby lowering blood pressure. Regular consumption has a health-care effect on patients with hypertension, hyperlipidemia, and cardiovascular and cerebrovascular diseases.

Onions are suitable for people who have high blood pressure, high blood lipids, arteriosclerosis and other cardiovascular diseases, diabetes, cancer, acute and chronic enteritis, dysentery and indigestion. 2. People with itchy skin diseases, eye diseases, stomach diseases, and lung and stomach inflammation should eat less. At the same time, onions are spicy and warm, so patients with fever should eat them with caution. 3. Do not eat too much onion at one time, as it may cause blurred vision and fever. 4. The spicy taste of onions is irritating to the eyes. If you suffer from eye diseases or eye congestion, you should not cut onions.

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