Onions can lower blood sugar. As a vegetable with relatively low sugar content, onions serve as a quality food for diabetics, with amino acids, proteins and other components that can effectively supplement the body’s daily nutrient needs. In addition, it can also restore the elasticity of the body’s blood vessels, help increase the basal metabolic rate and promote the body’s metabolic rate of fat, sugar and other substances. At the same time, the various trace elements in onions can also promote the prostate gland to secrete various substances that promote insulin secretion, increase the ability of the pancreas to secrete insulin and improve the sensitivity of the pancreas, thus restoring the body’s ability to regulate blood sugar to a certain extent. Onions can also lower the body’s blood lipid concentration and try to alleviate other side effects of diabetes on the body.