Onion seedlings are rich in nutrition, which not only contains potassium, vitamin C, folic acid, zinc, selenium and cellulose, but also contains two special nutrients-quercetin and prostaglandin A. These two special nutrients make onion seedlings have many irreplaceable health care effects:
1, cancer prevention
The anticancer effect of onion seedlings comes from its rich selenium and quercetin. Selenium is an antioxidant, which can stimulate human immune response, thus inhibiting the division and growth of cancer cells and reducing the toxicity of carcinogens. Quercetin can inhibit the activity of carcinogenic cells and prevent the growth of cancer cells. According to a survey, people who often eat onion seedlings are 25% less likely to develop gastric cancer and 30% less likely to die from gastric cancer than those who don't eat onion seedlings.
2. Maintain cardiovascular health
Onion seedling is the only vegetable known to contain prostaglandin A. Prostaglandin A can dilate blood vessels and reduce blood viscosity, so it can lower blood pressure, increase coronary blood flow and prevent thrombosis. Onion seedlings are rich in quercetin and have high bioavailability. Scientists report that quercetin may help prevent the oxidation of low density lipoprotein (LDL) and provide important protection for atherosclerosis.
Onion seedling
3. Stimulate appetite and help digestion
Onion seedlings contain allicin, which has a strong aroma and often makes people cry because of its pungent smell during processing. It is this special smell that can stimulate gastric acid secretion and increase appetite. Animal experiments have also proved that onion seedlings can improve gastrointestinal tension and promote gastrointestinal peristalsis, thus playing an appetizing role, and have obvious curative effect on anorexia caused by atrophic gastritis, insufficient gastric motility and dyspepsia.
4, sterilization, cold
Onion seedlings contain phytoncide, such as allicin, which has strong bactericidal ability and can effectively resist influenza virus and prevent colds. When this phytoncide is excreted from the body through respiratory tract, urinary tract and sweat gland, it can stimulate the secretion of cell wall in these parts, so it has expectorant, diuretic, sweating, bacteriostatic and antibacterial effects.
Suggestion: Purple onion seedlings are more nutritious.
Onion seedlings can be divided into white skin, yellow skin and purple skin according to skin color. From the nutritional value, the nutrition of purple onion seedlings is better. This is because purple onion seedlings are hotter than the other two varieties, which means they contain more allicin. In addition, the purple skin of purple-skinned onion seedlings contains more quercetin.
5. Onion seedlings have a good preventive effect on "rich diseases"
Used for headache, stuffy nose, weight, aversion to cold, fever and anhidrosis caused by exogenous wind and cold. Coca-Cola 500 ml, add onion seedlings 100g shredding, ginger 50g shredding, and a small amount of brown sugar. Boil for about 5 minutes on low heat and drink while it is hot.
In recent years, it has been found that in addition, onion seedlings can effectively prevent "rich diseases". Onion seedlings contain urinary butyric acid, which can make cells make better use of sugar, thus lowering blood sugar. Onion seedlings also contain prostaglandin, which can dilate blood vessels, reduce the resistance of peripheral blood vessels, promote sodium excretion and reduce elevated blood pressure.
A small amount of raffinose in onion seedlings is a functional oligosaccharide, which is an important sugar for onion seedlings to resist harsh environment (cold tolerance and drought tolerance). Raffinose can proliferate human bifidobacteria, and has the functions of relaxing bowels, lowering blood lipid and lowering blood pressure.
Onion seedlings also contain diallyl sulfur, which can prevent arteriosclerosis and reduce blood lipid. Quercus can also be detected in onion seedlings, and the sugar conjugate induced by flavanone has diuretic and detumescence effects, which is beneficial to prevent obesity, hyperlipidemia, arteriosclerosis and other diseases, and is consistent with the function of eliminating dampness and detoxifying onion seedlings.
6. Other effects
Prostaglandin A contained in (1) is a strong vasodilator, which can antagonize pressor substances such as catecholamine, promote sodium excretion and lower blood pressure.
(2) Sulfide can promote fat metabolism, reduce blood lipid and prevent arteriosclerosis;
(3) Flavonoids contained in onion seedlings can reduce the viscosity of platelets. Eating onion seedlings regularly can prevent thrombosis and reduce the probability of myocardial infarction and cerebral thrombosis.
(4) Onion seedlings contain organic substances similar to the hypoglycemic drug methanesulfonylurea, which can obviously reduce the blood sugar content;
(5) It contains sulfide and trace element selenium, and has inhibitory effect on gastric cancer, esophageal cancer, colon cancer and breast cancer.
(6) The volatile oil contained in onion seedlings can help the elderly to improve their sexual life.
(7) Onion seedlings can improve the bone density of experimental mice, and regular consumption of onion seedlings can prevent osteoporosis;
(9) Onion seedlings are rich in vitamin C and nicotinic acid, which can promote the formation of intercellular substance and the repair of damaged cells, and make the skin smooth, ruddy, elastic and have a cosmetic effect. Contains sulfur and vitamin E, which can prevent unsaturated fatty acids from producing lipofuscin pigment and prevent senile plaque.