Determination of vitamin D concentration of 25(OH) in the working-age population of the Northern Region

The study examined the working-age population of the North region to determine 25 (OH) vitamin D concentrations and compared insufficient subjects (Group 1) with those having the proper/optimal vitamin D concentration (Group 2) in terms of main indicators of physical development, cardiovascular system, biochemical and trace element picture. It is established that subjective vitamin D deficits develop disorders in physical development, cardiovascular system, as well as biochemical and trace element profiles. Our study can be applied for making recommendations on correcting vitamin D deficiency/insufficiency in residents of Russia's northeast.