The elderly eat more onions is good for health
Release time:
2022-07-15
Allium plant onion, is a common vegetable. A delicacy made from onions can increase appetite and supply the body's nutritional needs. Onions contain a variety of vitamins and calcium, phosphorus, iron and other minerals. In addition, it also contains protein, carbohydrates, cellulose and a variety of other substances beneficial to human health, is the body's metabolism of raw materials.
Onion is not only a food, but also a very useful medicine for the elderly. Studies have shown that onions contain prostaglandin A, which is rare in plants, and onions are the only plants that contain prostaglandins. Prostaglandin A is a strong vasodilator, which can expand human peripheral blood vessels, reduce peripheral resistance, promote the excretion of sodium salt in the body, and reduce blood pressure and prevent thrombosis. Therefore, it is very useful for the prevention of cardiovascular and cerebrovascular diseases.
It is reported that the rate of cardiovascular and cerebrovascular diseases is relatively low among residents in some onion-eating areas, because onions contain diallyl disulfide and a small amount of sulfur-containing nitrogen acids. They have the singular function of anti-arteriosclerosis, lowering blood lipids and preventing vascular embolism. Onions have the effect of reducing plasma bile solid drunk. After eating onions for a period of time, the plasma cholesterol, triglycerides and B lipoprotein in the body of people with high blood lipids were significantly reduced, and the fibrinolytic activity in the blood vessels was significantly enhanced. In this way, it can prevent blood coagulation, prevent the formation of blood clots, and have a good effect on the prevention of cerebral infarction.
Medical scientists also believe that detailed onions have a certain therapeutic effect on atherosclerosis, coronary heart disease, hypertension and vascular embolism. In addition, onions have a health function, that is, when the fat food and onions are eaten at the same time, onions can prevent the immediate increase in cholesterol in the body due to the fat food. Therefore, onion is listed as a food or medicine to reduce plasma bile solid drunk and prevent hyperlipidemia. Thus, onion can be used as food to prevent cardiovascular and cerebrovascular diseases. In particular, the elderly can take it as a health food, often eat.
In recent years, studies have reported that onions have anti-cancer effects. Experimental data show that people who eat half an onion every day have a 50% lower incidence of gastric cancer.
Onions also have a variety of other medical uses. For example, onions contain onion capsaicin, which not only stimulates appetite and helps digestion in the digestive tract, but also has certain medical effects on other systems. It has the effect of expectorant, diuretic and prevention of colds; the disulfide contained in onion can lower blood sugar and increase the concentration of insulin in plasma, which is very beneficial to the elderly suffering from diabetes. Onion sand also contains a phytoncide, antibacterial preservative effect, through animal experiments proved that it is similar to antibiotics, can prevent the growth of a variety of bacteria. If in summer and autumn, when the digestive tract infectious diseases epidemic season, eat more onions can also effectively prevent intestinal infectious diseases.
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