There are two to supplement microelements " The safe rule "

There are two to supplement microelements " The safe rule "
June 23, in that the Chinese Technology Association organize " scientist and media face-to-face " In the activity, PLA general hospital microelement research room researcher Bao ShanFen points out, the human body can't lack microelements such as iron, calcium, iodine,etc., but the microelement security has two important rules, first, the microelement can't be divided into briefly poisonous or nonpoisonous, second, the stability regulation mechanism of human internal environment is sound.
Bao ShanFen says, the supplement of the microelement, first, depend on whether its content in the human body is in the safe range with a limit on quantity, because various security ranges of minerals and microelements are different, security ranges of calcium can be from several hundred milligrams to 2000 milligrams, but there is safe narrower range of some elements, 0.05 milligram 0.15 milligram like selenium. Second, is it sound to see the stability regulation mechanism of human internal environment, when it is scarce and excessive to take in in the microelement, organism can regulate by oneself, or from the internal element storehouse through strengthen absorption in the carrier, reduce, excrete lack, for example the skeleton, liver shift the microelement to maintain the equilibrium; It is excessive to take in, the organism will be reduced automatically and absorbed, get rid of the surplus part from the body. If it is excessive or with scarce microelement to take in the microelement for a long time, stabilize regulation mechanism after destroying human internal environment, will produce toxic function or result in exhausting the state.
ShanFen Bao introduce, about mend iron, national nutrition learn proposed standard should take in 10 milligrams for the baby of 0~12 months every day, some experts think this standard is too high, and does not calculate according to the fixed weight, the standard should be revised dynamically, and the iron is excessive more serious than the problem which is short of iron. In addition, it is inadvisable to determine whether to mend zinc or not through determining children's hair or zinc value of the blood. Up till now, a generally acknowledged effective index does not diagnose whether to lack zinc in the world.
|