What is selenium and what is selenium

Selenium is a non-metallic element with the chemical symbol SE, which is located in the fourth period VI A group (element No. 34) in the periodic table of chemical elements. 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 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 by-products of metal deposits; The latter is made by combining selenium with amino acids through biotransformation, and generally exists in the form of selenomethionine.

Selenium deficiency is an important cause of Keshan disease, and selenium deficiency is also considered to be an important cause of KBD. KBD is an endemic, multiple, degenerative osteoarthropathy. It occurs mainly in adolescents and seriously affects bone development and the ability to work and live later in life.

Excess selenium can cause poisoning. It is manifested as dry and brittle hair, easy to fall out, brittle nails, white spots and longitudinal lines, easy to fall out, ** injury and nervous system abnormalities, and death in severe cases.

Foods with more selenium and their selenium content are as follows (100 grams in micrograms).

Legume. Stir-fried white pumpkin seeds (, safflower beans (, tiger skin kidney beans (, flower peas, soybeans (, red kidney beans (, broad beans (, mung beans (, peanut kernels (, north tofu (, south tofu (.

Meat. Pork kidneys (kidneys) (, beef kidneys) (, duck livers, chicken livers, turkey livers, beef (lean) (, chicken breasts), pork (lean) (, lamb (lean) (.

Eggs. Quail eggs (, white-skinned eggs (, red-skinned eggs (.

Aquatic products. Chinese horseshoe crab (, shrimp skin (, red lady fish (, mackerel (mackerel (,mackerel (mackerel) (,mackerel (,mackerel) (,sea shrimp (,dace (,large yellow croaker) (,herring (,hairtail (,sea bass (,river shrimp (,moray eel (etc.).

Fruits and vegetables. Konjac powder (, alfalfa (, red cabbage moss (, cabbage moss (cabbage moss, cabbage sum) (, fresh dragon tooth beans (jade beans) (, garlic (purple skin) (, fresh dragon beans (, scoop white (vegetables) (, carrots (yellow) (, fungus (sunflower) (, edamame (green beans) (etc.)

Staple foods. Staple foods containing high selenium are very good ways to supplement selenium, such as rice, millet, pasta, ingested from staple foods, it is easier to promote the body's absorption and conversion, because staple foods are necessary for people to ingest every day, so long-term eating has greatly improved the health pattern of the human body.

Selenium is an important nutrient trace element essential for the human body, with a wide range of biological functions, such as anti-tumor, antioxidant, anti-inflammatory, anti-hypertensive, hypoglycemic and immunomodulatory, etc., is the only nutrient known to have a direct relationship with viral infection among various nutrients with immunomodulatory functions, which can enhance the ability of the human immune system to regulate, promote the phagocytosis function of macrophages, and is a component of glutathione peroxidase (GSH-PX) Therefore, selenium is known as the "expert" in regulating the body's immunity"。

The trace element selenium plays an extremely important role in human life activities, and is praised as the "spark of life" by the medical and nutritional circles at home and abroad, and enjoys the reputation of "longevity element" and "king of anti-cancer".

Selenium is a trace element that is essential in the human body. Selenium has the effect of improving immunity, so in the current study, it is believed that selenium deficiency may be related to the appearance of cancer. Selenium is more common in daily life and is mostly contained in food, as long as the food is diversified, selenium can meet the needs of the human body normally.

Selenium has a high status among the trace elements in the human body, mainly because it can prevent and fight cancer, and can help identify and ** cell mutations in the human body. Selenium can scavenge free radicals, reduce blood lipids, delay aging, enhance disease resistance, and also have a certain alleviating effect on radiotherapy and chemotherapy for cancer patients.