Honored Researcher of the Russian Federation and the Republic of Tatarstan, corresponding member of the Tatarstan Academy of Sciences,

MD., Professor

S.V. MALTSEV

About 1 billion people all over the world suffer deficit or lack of vitamin D. This statistics is stunning and alarming, as vitamin D is necessary for humans’ health. Actually, a large number of experimental, clinical and epidemiological data link the low levels of vitamin D with a number of negative consequences for health, such as deaths of all causes, cardiovascular diseases, bone density decreasing, risk of fractures, metabolic syndrome, malignant neoplasms, autoimmune states, and infections. Today, the role of vitamin D — hormonal system in various links of metabolism is well studied, as well as the features of vitamin D preparations for correcting its insufficiency and deficit.

Key words: vitamin D, metabolism, deficit, correction.

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