Why does a person need selenium, chromium and fluorine: where is the daily norm
In addition to this element, fluorine is of great importance, which provides protection for tooth enamel and chromium. Where these microelements are contained and what is their daily norm – read in this material.
The role of fluorine in the human body
The role of fluorine in the human body is that it is not indispensable, that is, absolutely necessary, vital for normal growth and development of a nutrient. However, this micronutrient is undeniably beneficial for humans, as it alone has convincingly demonstrated the ability to reduce the frequency and severity of dental caries in children and adults.
The optimal daily dose of fluoride to reduce the risk of caries is 0.05-0.07 micrograms per kilogram of body weight. Thus, an adult weighing 6070 kilograms should receive 3 to 5 micrograms of fluoride per day.
Most fluorine is found in seafood: shellfish, shrimp – and different varieties of fish. Black and green tea are rich in fluorine – most of all this substance is released if the tea has been infused for at least five minutes. There is fluoride in nuts, liver, meat and milk. In addition, it is found in fruits and cereals, such as rice.
Why does the body need selenium?
In recent years, selenium has attracted special attention not only from researchers, but also from the general public. Why?
If there is not enough selenium in the body, then the activity of antioxidant protection, which is involved in the prevention of a number of the most serious diseases, such as atherosclerosis and cancer, inevitably decreases.
As a result, the immune system, heart muscle cells and many other body systems suffer.
Selenium deficiency can predispose to oncological diseases, and sufficient availability of this microelement can help reduce their frequency.
Attention! It should be remembered that selenium is highly toxic. Along with regions where it is scarce in the soil and products grown on it, there are regions where an excess of selenium can lead to poisoning – the so-called selenosis with rapid baldness, destruction of nails, teeth, skin lesions and disorders of the nervous system.
Where is selenium found in foods
And now let's figure out where selenium is found in products in different regions of our country. Selenium is rich in seafood: squid, shrimp and crabs. There is a lot of this element in sea fish, including herring. Good sources of selenium are liver, kidneys, heart, meat, and eggs. Of the products of plant origin, yeast, bran, wheat germ, tomatoes, garlic and mushrooms are the most rich in it.
The role of chromium in the human body
Although this trace element is present in the human body in negligible amounts, there are good reasons to believe that the role of chromium in the human body is in the normal absorption of glucose and ensuring growth processes.
Deficiency and daily norm of chromium
The daily norm of chromium for an adult is from 80 to 100 micrograms. Young children need 10 to 60 micrograms, and pregnant and lactating women need 50 to 200 micrograms.
Chromium deficiency is extremely rare. The trivalent chromium absorbed by the body is found in meat products, especially beef and beef liver. It is found in bran, yeast, and whole grain products. Legumes and seafood are rich in chromium.