The analysis of different selenium compounds toxicity and level of selenium intake in different countries are given in the article. It showed that population of Russian Federation have not defined selenodeficiency. Thus there is no need in wide-ranging fortification of foodstuff by selenium. For increasing of selenium level in particularized foodstuffs (biology activity supplements, specialized foodstuff for pregnant, children, dietetic, medicinal and prophylactic foodstuff) are preferred the organic forms of selenium. Inorganic forms of selenium (selenites and selenates) could use only in the composition of biology activity supplements. However in this case the organic form is more preferably too.
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