What is selenium and what does it do?

Selenium: symbol: se, English name:

Selenium, a non-metallic element, is a solid with a gray elemental metallic luster, in which the propagation rate of sound: (m s): 3350, density:

g cm , melting point: 217 , boiling point: , selenium is much less abundant in the earth's crust compared to its congeners sulfur.

Selenium is extremely difficult to find. Selenium was discovered from the lead chamber where pyrite was burned to produce sulfuric acid, and was another chemical element discovered by Berzirius after the discovery of cerium and thorium. He named this new element Selenium.

He also discovered allotropic forms of selenium. Inorganic selenium generally refers to sodium selenite and sodium selenite, which are obtained from by-products of metal deposits; The latter is made by combining selenium with amino acids through biotransformation, generally in the form of selenomethionine.

The role of selenium: Selenium is called the "king of anti-cancer" among the trace elements in the human body by scientists Scientific research has found that the level of blood selenium is closely related to the occurrence of cancer. A large number of surveys have shown that the level of selenium in food and soil in an area is directly related to the incidence of cancer, such as:

The high levels of selenium in the food and soil in this region are associated with low cancer incidence and mortality, and conversely, the high incidence and mortality of cancer in this region show that selenium is closely related to the occurrence of cancer. At the same time, the scientific community has also recognized that selenium is the "king of anti-cancer" among the trace elements in the human body. Boosts immunity:

Organic selenium can scavenge free radicals in the body, eliminate toxins in the body, antioxidant, can effectively inhibit the production of lipid peroxide, prevent blood clots, remove cholesterol, and enhance human immune function. Prevent diabetes: Selenium is the active ingredient that makes up glutathione peroxidase, which can prevent the oxidative destruction of pancreatic islet cells, make them function normally, promote sugar metabolism, reduce blood sugar and urine sugar, and improve the symptoms of diabetic patients.

Cataract prevention: Selenium can protect the retina, enhance the finish of the vitreous, improve vision, and have the effect of preventing cataracts. Prevention of cardiovascular and cerebrovascular diseases:

Selenium is an important element for maintaining the normal function of the heart, and has a protective and repairing effect on the heart muscle. The decrease in blood selenium level in the human body will lead to the decrease of the function of scavenging free radicals in the body, resulting in an increase in the deposition of harmful substances, an increase in blood pressure, a thickening of the blood vessel wall, a decrease in the elasticity of blood vessels, a slowdown in blood flow, and a decrease in oxygen delivery function, thereby inducing an increase in the incidence of cardiovascular and cerebrovascular diseases. Prevent Keshan disease, large bone joint disease, arthritis:

Selenium deficiency is the main cause of Keshan disease, large bone joint disease, and two endemic diseases, selenium supplementation can prevent bone marrow end lesions, promote repair, and promote disulfide bonds in protein synthesis against metal element detoxification. It has a good preventive and ** effect on patients with these two endemic diseases and arthritis. Detoxification, detoxification:

Selenium binds strongly to metals and can resist cadmium poisoning to the kidneys, gonads and central nervous system. Selenium combines with heavy metals such as mercury, tin, thallium, and lead in the body to form a metalselenoprotein complex for detoxification and detoxification. Prevention and treatment of liver disease, protection of the liver:

After 16 years of epidemiological investigation in areas with a high incidence of liver cancer, Yu Shuyu, a medical expert in China, found that the selenium content in the blood of residents in areas with high incidence of liver cancer was lower than that in areas with low incidence of liver cancer, and the incidence of liver cancer was negatively correlated with blood selenium level. Bengbu Xiweikang Biotechnology Co., Ltd., based on the standards of the National Health Organization, has developed selenium-rich rice and tea, with an organic selenium content of 100-300 micrograms per kilogram, which has successfully opened up a safe and effective new channel for human selenium deficiency food supplements.

First, selenium has a very good anti-cancer effect, according to the results of clinical investigations, if the amount of selenium in the human body is relatively insufficient, it is likely to further cause liver cancer, stomach cancer, esophageal cancer and many other problems. Second, selenium also has a reputation for antioxidant function. You must know that if the human body is too deficient in selenium, it will lead to premature aging in the human body.

Lu Xiang Third, selenium can also strengthen the body's immunity on the original basis. Fourth, selenium can also greatly improve the body's digestion and absorption of vitamin acek, which can make the human body supplement better effect, which is why many multivitamin tablets will incorporate a certain amount of selenium. Through the explanation of the above part, everyone also understands the role of selenium in some specific aspects.

It is because it has more functions, if you can insist on supplementing some selenium-rich foods or eat some selenium tablets at ordinary times, it is really good.

Selenium is a non-metallic element with the chemical symbol SE, which is located in the fourth period VI A (element No. 34) in the periodic table of chemical elements.

Selenium. Selenium elemental is a red or gray powder with a gray metalloid. Selenium is elementally brittle, toxic, and soluble in carbon disulfide, benzene, and quinoline. It can conduct electricity, and its conductivity changes dramatically with light intensity. It can be used to make semiconductors and photosensitive materials.

High purity selenium. At the same time, selenium is also an essential trace element for the human body, which is closely related to human health. It can significantly improve the body's immune function and is an antidote to some heavy metal elements.

As an essential trace element for human health, selenium has health care functions such as scavenging free radicals, antioxidant (500 times that of vitamin E), and enhancing immune function (20-30 times that of VE). In particular, it plays an important role in cancer prevention, anti-cancer, prevention of cardiovascular and cerebrovascular diseases.

Selenium is a chemical element with the chemical symbol SE, a non-metal. It can be used as a photosensitive material, a catalyst for the electrolytic manganese industry, an essential nutrient element for the animal body and a beneficial nutrient element for plants.

Selenium is a trace element in the human body. If there is a lack of selenium in the human body, it is easy to suffer from various diseases, that is, the immunity is relatively low, so selenium is still more important.