We all know that there are more than 40 kinds of nutrients that maintain our lives and health. These nutrients are indispensable. Any lack or deficiency will affect the function and health of the body. The amount of nutrients we need is not the same, some more, some less, but it does not mean that the quantity needed is more important, and less quantity is not important. In our body, on the one hand these nutrients each play a role, and at the same time coordinate with each other to maintain the normal operation of the body's "machine". "Nutrition" is not enough or lacking, nor is it better! Today we talk about selenium as a nutrient. Selenium was first discovered by a Swedish chemist in 1817, but it was not until 1934 that it attracted attention. Since then, extensive and in-depth studies conducted by scientists have confirmed that selenium is not only an essential nutrient for animals, but also a trace element necessary for the human body. In the 1970s, the prevention and treatment of Keshan disease was carried out in China, further confirming that selenium is an essential trace element in the human body, and the need for human selenium was proposed. What is the main role of selenium in the human body? Almost all tissues and organs of the human body contain a certain amount of selenium, which has the highest concentration in the liver and kidneys, and the largest amount in the muscle tissue, and can account for 50% of the total human selenium. The study found that selenium has anti-tumor, anti-oxidative damage and enhance immunity. These effects of selenium are mainly achieved by acting as a catalytic component in an enzyme or protein. Modern science and technology identified more than 20 selenium-containing proteins. Selenium exerts its antitumor effect through metabolites in the body; suitable selenium levels are necessary for maintaining cellular immunity and humoral immunity; selenium has the function of protecting cardiovascular and maintaining myocardial health; selenium also has the effect of promoting growth and protecting visual organs, and cataracts. In addition to supplementing selenium, diabetics and diabetic blindness can improve visual function. Selenium is an essential component of several antioxidant enzymes, such as glutathione peroxidase, which acts as a disease-preventing agent by eliminating lipid hydroperoxides and blocking the pathogenic effects of reactive oxygen species and free radicals. . Vitamin E also has antioxidant effects, and the two systems act synergistically to fight oxidation and slow the aging process. What is the health impact of lack of selenium? Like other essential nutrients, selenium plays an important role in the human body. Selenium is not enough to maintain human health. If it is too small, it will cause deficiency. At present, the lack of diseases caused by selenium has not yet been reported. The main causes associated with selenium deficiency are "Keshan disease" and "Kaschin-Beck disease." Keshan disease is a cardiomyopathy with multiple focal myocardial necrosis as the main lesion. Kashin-Beck disease is a local, multiple, and deformed osteoarthropathy. The survey found that: 1 No patients with Keshan disease and Kaschin-Beck disease have ever appeared in non-selenium-deficient areas. 2 The selenium content in the blood, hair, and urine of people living in Keshan disease area was lower than that in the non-Keshan disease area. 3Selenium content in water, soil and grain in Keshan disease area was lower than that in the non-Kerk Mountain ward. 4 Selenium can prevent Keshan disease. Is the more selenium the better? Similarly, too much selenium can cause selenium poisoning, vomiting, hair loss, nail deformation, irritability, fatigue, and peripheral neuropathy. Adults recommended by the China Nutrition Society recommend selenium intake of 50 micrograms per person per day and the maximum tolerable intake of 400 micrograms. Therefore, in selenium-free areas, such as high-selenium areas such as Enshi in Hubei and Ziyang in Shaanxi, no additional selenium is needed under normal circumstances to avoid selenium poisoning. However, selenium-deficient areas can be supplemented with selenium. It is recommended that selenium be supplemented under the guidance of a doctor. Common selenium-rich foods: selenium from high to low Caviar, sea cucumber, kidney, oysters, alfalfa, wheat germ powder, fresh mussels, red clams, crab, shrimp, scallops, peas, octopus, dried mushrooms, herring, loach, sassafras, mutton, lentils, river shrimp , liver, squid, ginkgo, pork, lean beef. Stainless Steel Pipe Fitting Union,Stainless Steel Sanitary Union,Sus Stainless Steel Din Union,Stainless Steel Union Wenzhou Gaoya Light Industry Machinery Co.,ltd. , https://www.hongyafitting.com