What are the benefits of eating onions? Can onions be eaten if they sprout?

　　Benefits of eating onions

　　1. Onions have a certain refreshing effect, which can help cells make better use of Grape It also lowers blood sugar and supplies heat energy to brain cells. It is a good dietary vegetable for patients with diabetes and mental illness.

　　2. The trace element selenium contained in onions is a strong antioxidant, which can eliminate free radicals in the body, enhance cell vitality and metabolism, and has anti-cancer and anti-aging effects.

　　3. Onions are rich in nutrients and have a spicy smell. It can stimulate the secretion of the stomach, intestines and digestive glands, increase appetite, and promote digestion. Onions do not contain fat, and their essential oils contain a mixture of sulfur-containing compounds that can lower cholesterol.

　　4. Onions are the only ones known to contain prostaglandin A. Prostaglandin A can dilate blood vessels and reduce blood viscosity, thereby lowering blood pressure, reducing peripheral blood vessels and increasing coronary blood flow, and preventing thrombosis. It counteracts the effects of catecholamines and other blood pressure-boosting substances in the human body, and promotes the excretion of sodium salts, thereby lowering blood pressure.

　　5. Onions contain a substance called "quercetin" 9, which is one of the most effective natural anti-cancer substances currently known. It can prevent the variation of the biochemical mechanism in the body and control the growth of cancer cells, thus having anti-cancer and anti-cancer effects.

　　6. Onions also contain a certain amount of calcium. In recent years, Swiss scientists have discovered that eating onions regularly can increase bone density and help prevent and treat osteoporosis.

　　7. Onions can dissipate wind and cold because onion bulbs and leaves contain a greasy volatile called propylene sulfide.

　　Can you still eat onions after they have sprouted?

　　Many people know that if the potatoes at home have sprouted, they must not be eaten, because eating them will cause poisoning. As for onions, many people buy a lot of onions at once and they will sprout if left for a long time. So, can onions still be eaten if they sprout?

　　Nutrition experts point out that after harvested onions are dried, they can be stored for a long time without germination or mildew. However, if it is not dried or stored improperly, it will also sprout or rot. Usually onions are most likely to sprout at around 15 degrees Celsius. Onions that have sprouted or even sprouted green seedlings will not produce substances harmful to the human body, so they can still be eaten. However, after the onion sprouts, the nutrients in the scale part will be transferred to the top for sprout growth, resulting in a decrease in nutritional content. In addition, the commercial value of onions will be affected after they sprout, and their taste will also be spicy. Therefore, onions should be placed in the sun for a period of time and then placed in a ventilated and dry place to prevent them from sprouting.

　　Quality requirements for onions: The onions must be plump, with shiny skin, not rotten, without mechanical damage or soil, and fresh onions without leaves.； After storage, it is better if it is not soft, does not bolt, has tight scales, has low water content, and is spicy and sweet.