Onion contains a complex of vitamins, essential oils, flavonoids, sulfur, fluorine, iron, magnesium and calcium. All these substances make the onion a biologically active product.
With it spicy aroma it stimulates the separation of digestive enzymes and bile, intestinal peristalsis, preventing the development of putrefactive flora in the colon. Onion is useful for atherosclerosis and heart disease, especially if the nutrition is based on the products with a high fat content. It inhibits the synthesis of cholesterol, and thereby reduces the risk of cardiovascular diseases. It prevents high blood sugar, saturates the body with vitamins, and suppresses the harmful microbes.