Sihaiwang: onion is a clean and pollution-free green food, with the effect of lowering blood fat, appetizing and so on. So can you eat the rotten onions? What are the effects and functions of onions?
Can I eat the rotten onions
'rotten onions' should be caused by microbial invasion. This kind of onion should be thrown away immediately, and the parts that are not rotten should not be eaten any more. Onions are usually invaded by microorganisms after long-term storage, among which penicillin is the most frequent. After metabolism, it will produce patulin, which will cause gastrointestinal disorders, kidney edema and other diseases.
How to eat onions
Method 1: wash an onion with vinegar, peel off the skin and cut into thin slices, heat it in the microwave for about 2-3 minutes, then put the onion in the container, add 5 tablespoons of vinegar, and then put it in the refrigerator. Serve the next morning. This kind of onion is used for breakfast every day, which can effectively reduce blood sugar and weight loss.
Method 2: soak lettuce leaves and onions in vinegar, wash and slice onions, add a few lettuce leaves, then pour in apple vinegar, and submerge onions. This kind of eating method can treat constipation for many years, stabilize blood pressure, and effectively improve sleep.
Method 3: drinking the water or eating more fried onion can reduce the opacity of the eyes and improve the vision.
Effect and function of onion
1. Anti cancer effect. Onion is rich in flavonoids and selenium. Flavonoids have the function of scavenging free radicals and antioxidation; selenium is a strong antioxidant, which can scavenge all kinds of free radicals in the body and has the effect of anti-cancer and anti-aging.
2. Reduce blood pressure and prevent thrombosis. Onions are one of the few vegetables that contain prostaglandin a. Prostaglandin A is a strong vasodilator, which can reduce the resistance of human peripheral blood vessels and coronary arteries, promote the excretion of sodium salt and other materials that cause the rise of blood pressure, so it has the effect of lowering blood pressure and preventing thrombosis. 3. Reduce blood sugar and blood lipid. Quercetin in onion is a kind of organic substance similar to metsulfobutylurea, which is suitable for diabetes patients. Clinical studies have confirmed that the sulfur-containing amino acids and sulfides in onion can reduce cholesterol and blood lipids.
4. Others. The phytobactericide in onion has the functions of stimulating appetite, helping digestion, eliminating phlegm, diuresis, sweating and preventing cold. At present, onion has become a new noble and famous health food with both medicine and vegetable.