What is the urgent role of selenium?

Selenium is a chemical element, not a nonmetal.

Selenium exists in nature in two ways: inorganic selenium and plant active selenium. Inorganic selenium generally refers to sodium selenite and sodium selenite, which are obtained from the by-products of metal deposition; The latter is a combination of selenium and amino acids through biotransformation, which generally exists in the form of selenomethionine.

Selenium has a wide range of functions, mainly in four aspects:

First, antioxidation. It has been scientifically proved that due to the high antioxidant effect of selenium, proper supplementation can prevent organ aging and pathological changes, delay aging, enhance immunity, resist diseases, resist toxic heavy metals, reduce the side effects of radiotherapy and chemotherapy, and prevent cancer.

Second, prevent diabetes. Selenium is the active component of glutathione peroxidase, which can prevent the oxidative damage of islet β cells, make them function normally, promote glucose metabolism, reduce blood sugar and urine sugar, and improve the symptoms of diabetic patients.

Third, detoxification. Selenium has a strong binding force with metals and can resist the toxicity of cadmium to kidney, gonad and central nervous system. Selenium combines with mercury, lead, tin, thallium and other heavy metals in the body to form a metal selenium protein complex, which plays the role of detoxification.

Fourth, the prevention and treatment of liver disease. Chinese medical expert Yu Shuyu found that the blood selenium content of residents in high-incidence areas of liver cancer was lower than that in low-incidence areas of liver cancer, and the incidence of liver cancer was negatively correlated with the blood selenium level. In Qidong County, Jiangsu Province, she supplied selenium to 6.5438+0.3 million residents, which proved that selenium supplementation could reduce the incidence of liver cancer by 35% and that of people with family history of liver cancer by 50%.

/iknow-pic.cdn.bcebos.com/8694a4c27d1ed 21bc28a36eddc451da3f7f "target =" _ blank "title =" "class =" ikqb _ /iknow-pic . cdn . BCE Bos . com/8694 a 4c 27d 1 ed 2 1 BC 28 ee 295 a 36 eddc 45 1 da 3f 7 f？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ N1/2018/1213/c14739-30463372 A balanced diet is the most important.