What are the effects and nutritional value of onions

Onion is a herbaceous plant of the lily family. In life, we can use it to stir-fry or cook with other side dishes. It tastes sweet and tender, and can also be eaten raw. As a home-cooked dish, I believe that it is often indispensable on our table. In foreign countries, it is even known as the "Queen of Vegetables". The following is about its efficacy and function!

Onion Benefits

1. Health benefits.

Onion is the only food known to contain prostaglandin A. Onion is also a natural blood thinner. Prostaglandin A can dilate blood vessels and reduce blood viscosity, thus lowering blood pressure, reducing peripheral blood vessels and increasing blood flow in coronary arteries, 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.

2. Onions have certain refreshing effects.

It can help cells better utilize glucose, while lowering blood sugar and supplying heat energy to brain cells. It is an excellent vegetable for patients with diabetes and mental depression.

3. It has bactericidal and cold-preventing effects.

Onions contain phytoncide such as allicin, which has strong bactericidal ability. Chewing raw onions can prevent colds.

Benefits of eating onions

1. The prostaglandin A contained in it is a strong vasodilator, which can counteract pressor substances such as catecholamines, promote sodium excretion, and have a blood pressure lowering effect;

2. The sulfide contained in onions can promote fat metabolism, reduce blood lipids and resist arteriosclerosis. If you eat 50-70 grams of onions every day, its blood lipid-lowering effect is stronger than taking the lipid-lowering drug clofibrate;

3. The flavonoids contained in onions can reduce the viscosity of platelets. Eating onions regularly can prevent thrombosis and reduce the probability of myocardial infarction and cerebral thrombosis.

4. Onions contain organic matter similar to the hypoglycemic drug tolbutamide, which can significantly reduce blood sugar levels;

5. The sulfide and trace element selenium it contains can inhibit gastric cancer, esophageal cancer, colon cancer, breast cancer, etc.;

6. The volatile oil contained in onions can help sexual performance. Elderly people who often eat onions can improve the quality of their sexual life.

7. Onions can increase the bone density of experimental mice, and eating onions regularly can prevent osteoporosis;

8. Onions are rich in vitamin C and niacin, which can promote the formation of intercellular matrix and the repair of damaged cells, making the skin smooth, ruddy and elastic, and have a beauty effect. The sulfur and vitamin E contained in onions can prevent unsaturated fatty acids from generating lipofuscin pigments, which can prevent age spots. In addition, onions contain antibacterial and anti-inflammatory substances, and eating onions can prevent and treat enteritis and dysentery.