Effects and functions of onions
1, onions are rich in nutrients, and have a pungent odor. Can stimulate the stomach, intestines and digestive gland secretion, improve appetite, promote digestion, and onions do not contain fat, its essential oil contains mixed sulfide, can reduce cholesterol, can be used to treat indigestion, loss of appetite, food accumulation and other symptoms.
2, selenium, a trace element contained in onions, has a strong antioxidant, can remove free radicals in the body, enhance cell vitality and metabolism, cancer prevention, anti-aging effect.
3, onions have the role of spreading wind and cold, which is because the onion bulb and leaves contain a kind of oil called propylene sulfide volatiles, with cold resistance, anti-influenza virus ability.
4, onion contains a kind of material called "oak bark flavin", which is currently known as one of the most effective natural anticancer substances, it can prevent the body's biochemical mechanism of mutation, so as to control the growth of cancer cells, and thus play a role in preventing and combating cancer.
5, onions contain phytobacteria such as allicin, so it has a strong bactericidal ability. Eating raw onions can prevent colds.
6, onion has a certain effect of refreshing, can help cells better use of glucose, while reducing hypoglycemia, supplementing the brain cells heat, is diabetes, mental atrophy of patients with good food.
7, onions also contain some calcium, in recent years, Swiss scientists found that eating onions can improve bone density, help prevent osteoporosis.
8, onion is the only known substance containing prostaglandin A. Prostaglandin A can dilate blood vessels. Prostaglandin A can dilate blood vessels, reduce blood viscosity, thus generating lower blood pressure, can reduce peripheral blood vessels, increase coronary blood flow, prevent thrombosis. Resist the role of catecholamines and other pressure-raising substances in the body, but also to promote the excretion of sodium, thus reducing blood pressure, often eat on high blood pressure, high blood cholesterol, cardiovascular and cerebral vascular disease people have health effects.
Suitable for onion crowd
1, hypertension, hyperlipidemia, atherosclerosis and other cardiovascular diseases, diabetes, cancer, acute and chronic enteritis, dysentery, dyspepsia and other people especially suitable.
2, all the itchy skin disease, eye disease and stomach disease people eat less, lungs and stomach inflammation people eat less. In addition, onions are warm, feverish patients should be cautious.
3, onions should not eat too much at a time, easy to cause eye paste and fever.
4, onions contain spicy flavor of eye irritation, eye disease, eye congestion, should not cut onions.