There are a lot of shelium-rich foods on the market, such as eggs, cassava, apples, etc., but many do not know what the health benefits are. Today, we are asked to give a good presentation on the efficacy of selenium and its health applications to the post-doctorate on nutrition and food safety at the chinese university of agriculture and to the vice-professor professor of the kingdom, a master's mentor at the beijing institute of materials。
Agricultural university of china
Postdoctorate in nutrition and food safety
Beijing material institute
Associate professor. Master's student mentor
What happens if the body is short of selenium
Selenium is a trace element essential to the human body and cannot be synthesized from the human body, but only ingestion from outside. According to the survey, the average intake of selenium in the daily diet of chinese residents is 26-32 mg/d (μg/day), far below the recommended standard of 60 mg/d of the china nutrition institute。
Many areas of the country are currently threatened by a lack of selenium, as the content of the food is closely related to that of the soil. If the soil of this place lacks selenium, it is also likely that the property of this place will lack selenium。
And what happens to the body without selenium
There may be cases of de-haired, de-manned。
2 directly led to the emergence of kshan disease and osteoporosis. Kasan's disease, also known as endemic myocardial disease, was found in the koshan district of heilongjiang province in 1935 and became known as this disease。
High blood pressure, ischaemic heart disease, cirrhosis, pancreas, fibromas, cancer, immunofunctional disorders, etc。
How does selenium help our health
Selenium is an active substance of the glycerine peroxide enzyme, which, if absent, will not work. The enzyme is mainly resistant to oxidation, which helps to remove the free radicals in the body, and is also resistant to oxidation if the free radicals in the body are too high to cause problems such as old age, three heights and diseases of the immune system。
Maintenance of human immunity
The maintenance of normal immunisation of selenium has been recognized as early as 1970, and proper supplementation of selenium is useful in maintaining the immune health of cells。
On the one hand, during the synthesis of thyroid hormones in the body, there was a significant reduction in oxidation, resulting in excess hydrogen peroxide, and selenium was effective against the thyroid effects of hydrogen peroxide and active oxygen intermediates. On the other hand, selenium helps to activate thyroid hormones。
Protection of cardiovascular and myocardial health
Epidemiological surveys have found that the incidence of cardiovascular disease among populations in the high selenium areas is low, while the lack of selenium can cause kshan disease, characterized by myocardial damage. The lack of selenium can also lead to increased lipid peroxide, cardiac fibrosis, small myocardial artery and cardiac damage。
Epidemiological studies of the population show a marked increase in the incidence of neoplasms in areas where selenium is lacking, and the higher rate of cancer mortality among the population in areas with lower levels of selenium deficiency indicates that selenium is somewhat resistant to cancer。
As a non-metallic ion with a negative charge, selenium may be combined in organisms with a hazardous metal ion with a positive charge to form a metallic metallic protein compound that removes a hazardous metal ion that is carcinogenic directly from the body and removes the toxicity of the metal ion, which acts as antidote and detoxification. At the same time, selenium can be combined in the body with toxic substances such as cadmium, mercury, arsenic, lead etc., rendering it toxic and excluding it。
You can supplement selenium with food, and generally animals' internal organs, seafood shrimp, and so on are foods with high amounts of selenium。
In addition, there are many foods containing selenium, such as celery, broccoli, mustard, cabbage, sesame, spinach and so on。
Although selenium is good for human health, intake is also sophisticated, and intake varies from age to age. The following figure may be consulted:
Chongqing watching healthy home
Post-doctorate in nutrition and food safety at the agricultural university of china
Associate professor, beijing institute of materials
Bringing the nuanced selenium in food
