To supplement selenium, we must first know the role of selenium in the human body and the importance of this role. Selenium is a component of glutathione peroxidase, which uses glutathione to scavenge peroxides and reactive oxygen species in the body, so selenium is an antioxidant. Excessive active oxygen free radicals in the body will oxidize lipids (fat, cholesterol, phospholipids, etc. ), protein, nucleic acids, enzymes, etc. In vivo, cell membrane is damaged, protein's degeneration, dna is damaged, and enzymes are inactivated, which has become an important cause of disease, sub-health and aging.
More than 200 diseases, including cancer, coronary heart disease and dementia, are related to reactive oxygen species. Excessive active oxygen free radicals in the body are the root of all diseases, and selenium, as an antioxidant, is very important for maintaining health, preventing diseases and delaying aging. The daily demand for selenium for men and women is about 50 micrograms. People who are found to be deficient in selenium can consciously eat some foods containing more selenium every day. But there must be a degree of selenium supplementation. Selenium is not bad for human body, and too much is not good.
In particular, the range between the daily demand of selenium and the minimum dose of selenium poisoning is particularly narrow, that is, the minimum dose of selenium poisoning is only 5 times of the daily demand. 250 micrograms of selenium in the body reached the minimum dose of poisoning. It should be noted that when the body is deficient in selenium and symptoms appear at the same time, it is impossible to meet the needs of the body through daily diet. It is suggested that some selenium supplement products should be used to strengthen absorption.