There are all kinds of products on the market to improve immunity, all of which are based on supplementary nutrition and balanced nutrition. Both human aging and diseases are related to oxidative damage of cells and invasion of harmful substances. Selenium can improve human immunity by detoxification, detoxification and scavenging free radicals around cells. Selenium supplementation should be the most direct and fastest way to improve human immunity.
2. Can selenium supplementation improve the growth and development of malnourished children?
Clinical studies have found that the blood selenium content of malnourished children is very low. If these children are only provided with high-quality meals such as protein and not enough selenium, their growth and development will not be significantly improved. Only by supplementing enough selenium can they have a good effect. Therefore, supplementing selenium to children is beneficial to growth and development.
3. What is the effect of selenium deficiency in pregnant women on the fetus?
Selenium is the material basis of human body and widely exists in human tissues and organs. Humans need selenium from the beginning of embryonic development. If the mother is deficient in selenium, the fetus will also be deficient in selenium, which will affect the normal development of the fetus and may also lead to fetal malformation and dysplasia. Therefore, pregnant women especially need selenium supplementation.
4. How to find a good selenium source?
Selenium is divided into inorganic selenium and organic selenium. Inorganic selenium is represented by sodium selenite, and some drugs and selenium-enriched foods (such as selenium-enriched salts) have added sodium selenite. Inorganic selenium is chemically synthesized and absorbed quickly, but the utilization rate of impurities is low and the safety of long-term use is poor. If the intake is not well controlled, it will also affect the absorption of other elements and even produce antagonism. Organic selenium can be divided into malt selenium, seaweed selenium, yeast selenium, fungal selenium and so on. Organic selenium is transformed from plants and absorbs the essence of plants, which has wider nutritional value and health care function, slow absorption and high utilization rate. Organic selenium is safe, and has been clinically tested by the Academy of Military Medical Sciences. It is non-toxic and has no cumulative toxicity. Therefore, when we choose selenium health products, we should try to choose natural organic selenium with high purity and high utilization rate.
Selenium and health
5. What is microcirculation? What harm can an obstacle do to people? Can taking selenium improve human microcirculation?
The blood vessels in the human body are the pipes that transport blood. Among them, large blood vessels such as arteries and veins are like a big river with many tributaries. The body transports various nutrients to tissues and cells through the interaction of rivers and tributaries. Blood reaches the widely distributed capillary network through large blood vessels and circulates in the human body. This part of the blood circulation outside the great vessels is called "microcirculation".
The material exchange between blood and tissue is realized by microcirculation function. When the cells on the capillary network are damaged, the microcirculation function will change, which will hinder the exchange of nutrients and other substances, and the normal function of tissues and organs will be seriously affected, which will inevitably lead to diseases and aging.
When the blood selenium level of human body decreases, the function of scavenging free radicals decreases, and excessive harmful free radicals will lead to peroxidation damage of microcirculation. Selenium supplementation can improve microcirculation function and prevent various diseases caused by microcirculation injury.
6. Why do tumor tissues accumulate a lot of selenium?
When tumor cells appear in human body, human defense system mobilizes selenium to act on tumor cells. Mitochondria in tumor cells are one of the main parts where selenium plays a role. Selenium weakens the proliferation of tumor cells and controls the growth and differentiation of tumor cells in vivo, but it has no adverse effect on normal cells of human body. The reason why selenium accumulates in tumor tissues is that the body plays an anti-cancer function of selenium.
7. Is selenium related to cataract?
Selenium has the function of protecting visual organs. In the process of human growth and development, the selenium content in lens increases slowly. It is observed that people who lack selenium are prone to cataract, and the selenium content in the lens of cataract patients is only about 1/6 of the normal value. Selenium supplementation can remove the peroxide in the lens in time, so that the peroxide does not accumulate, thus achieving the purpose of protecting the lens. Therefore, selenium supplementation of 50~ 150 micrograms per day for the elderly can prevent cataracts.
8. Why is selenium a natural antidote?
As a nonmetallic ion with negative charge, selenium can combine with harmful metal ions with positive charge in organisms to form metal-selenium-protein complex. Selenium antagonizes toxic substances and plays a role in detoxification, so selenium has won the reputation of "natural antidote"
9. When taking selenium, take it with hot water. Will the composition change?
Examples show that the antioxidant effect of selenium added to 100℃ boiling water remains unchanged, but other nutrients such as vitamins in organic selenium will be affected and destroyed to some extent with the increase of water temperature. Therefore, when taking organic selenium, the water temperature should be 50-80 degrees.
10, when is the best time to take selenium products?
There is no strict regulation on the time of taking selenium, but it is best to take it on an empty stomach. For diabetics, it is best to take it half an hour before meals. For tumor patients receiving radiotherapy and chemotherapy, it should be taken one week in advance to reduce the side effects of radiotherapy and chemotherapy.
1 1. Can selenium be taken with medicine? Do you still need selenium supplementation after recovery?
When selenium is taken together with drugs, it not only has no antagonistic effect, but also can eliminate the toxic substance-peroxide produced in the biochemical reaction of drugs and reduce the toxic side effects of drugs.
Long-term quantitative supplement of organic selenium has no toxic and side effects, and can supplement selenium in vivo in time, improve immune function and maintain good health, so it can be used continuously after recovery.
Countries with developed health care medicine, such as the United States and Japan, suggest that 50-200 micrograms of selenium should be supplemented every day, regardless of illness or not, as a way to get rid of illness and strengthen the body.
12. Can I use selenium before drinking?
Moderate drinking is good for health. On the other hand, alcoholism is harmful to everyone. It is harmful to the body in many ways, especially to the liver. Taking 200 micrograms of selenium before drinking can reduce the harm of ethanol to the body and protect the liver; If you drink too much, you can take 400 micrograms of selenium at a time to reduce the damage of ethanol to liver cells and help restore the normal function of the liver.
13. Can selenium and vinegar be eaten together?
Selenium and vinegar do not conflict. For diabetic patients, if selenium and vinegar are taken together, the blood sugar of about 1/3 patients will drop significantly.
14. Can selenium be eaten with tea?
Drinking tea has always been very popular in our country, but it is common sense in our life that we can't eat it with tea when taking medicine. Selenium can be drunk with tea. Phenols, flavonoids and other substances in tea have antioxidant effect, and they have synergistic effect, which is more conducive to human health.
15. Why do you need selenium supplementation when you move into a new home?
Relatives and friends around us often complain that they are prone to get sick after moving into a newly renovated home. Why is this? This is because we use a lot of paint when decorating our new house, and in the process of drying, we will release a lot of peroxide, that is, free radicals. After we live in a new house, these free radicals are inhaled into the body through the respiratory system, which makes the body's immune function decline, so it is easy to get sick.
In particular, even if you use green paints and coatings, free radicals will be generated during the drying process, so Dr. se suggested: 1. Keep indoor ventilation and reduce the concentration of free radicals; 2. Add 200 micrograms of selenium every day to quickly remove free radicals in the body.
16. Why can selenium supplement promote calcium absorption?
In real life, what is one thing that each of us always does before going to bed at night and after waking up in the morning? Wash your face first, and then apply oil to maintain your skin. Similarly, the human body should remove harmful substances around cells in time, such as harmful heavy metals and free radicals, which is conducive to the absorption and utilization of various nutrients. For example, some people have been supplementing calcium, but they still lack calcium, because lead in the body exceeds the standard, which antagonizes calcium and affects its absorption. As the saying goes, "calcium supplementation does not lead, which wastes money." Selenium supplementation can expel lead and promote the absorption of calcium.
"Selenium is an essential trace element for human beings and animals, which has the functions of scavenging free radicals, antioxidation, anti-aging, anti-tumor and anti-virus." Zhao Guishen, an associate professor at China Agricultural University, said that taking selenium-enriched white duck eggs as an example, its selenium content is as high as 57 micrograms per100g, which is 2.5 times that of eggs, which is of great benefit to the health of children and the elderly. In recent years, Liancheng county regards "selenium enrichment" as a key resource, and has taken a series of measures to support the development of selenium-enriched industries in Liancheng county, focusing on the development of local sweet potatoes, Liancheng white ducks, Fujian yellow rabbits, bitter melons, Luoshen flowers, Pueraria lobata and other industries.