1. Onions can improve autoimmunity

Onions have been shown to be rich in vitamins, including carotene. Vitamin C and vitamin B1.B2, these vitamins are vital for the body to replenish food in a timely manner and play a very important role in improving autoimmunity.

2. Onions can prevent cardiovascular disease

Prostaglandin A in onions can dilate blood vessels, reduce vascular resistance, increase coronary artery flow, thereby reducing blood pressure and preventing thrombosis; diallyl disulfide and sulfur amino acids in onions have the effect of lowering blood lipids and anti-vascular sclerosis, which can prevent high blood pressure and hyperlipidemia.

3. Onions can lower blood pressure

The unique prostaglandin A of onions is a natural blood thinner. It can dilate human blood vessels and reduce blood concentration, thereby increasing blood flow in the coronary arteries and reducing blood flow in the peripheral vasculature. In addition, it has the ability to counteract blood pressure substances such as catecholamines. It can promote the excretion of sodium substances and reduce blood pressure.

4. Onion can delay aging

The main cause of human aging is the cell-generated free radicals, which is a highly reducing substances. The substances contained in onions can well resist the damage of free radicals, help the body control blood sugar, make full use of the body's fats and proteins, and slow down the rate of cellular aging.

5. Onions can remove blood vessels

Onions can also remove blood vessels, because onions can dissolve fibers and make our blood vessels flow more smoothly, so for those with hyperlipidemia. We should eat more onions. Of course, for those who don't have this, eat more onions to prevent this disease.

6. Onions can prevent constipation

While constipation is not a big problem, many people are often ashamed to talk about it. The occurrence of constipation has a lot to do with diet, and the lack of dietary fiber in the diet is the main cause of constipation. Dietary fiber is mainly found in vegetables, fruits and coarse grains, onions also contain a certain amount of dietary fiber. Eating onions regularly can also prevent constipation.