The formation of bone mineral density and its maximum peak mass is associated with the provision of the body with osteogenic micronutrients - vitamin D, calcium, magnesium and trace elements involved in the synthesis of bone matrix and its mineralization. Aim. To study the provision of adolescents with vitamin D, micro- and macroelements (calcium, magnesium, zinc, copper, manganese, boron) with an assessment of the state of metabolism and bone mineralization. Methods An open prospective study was carried out with the participation of adolescents aged 10-17 years of the 1-2 health group. The concentration of 25(OH)D, calcium, magnesium and zinc in the blood serum, the content of magnesium, zinc, boron, copper, manganese in the hair, calcium excretion in the urine, the level of osteocalcin, C-terminal telopeptides of type I collagen (beta-cross laps) in blood. A densitometric study of the lumbar spine was carried out. The effect of a combined preparation containing vitamin D, micro- and macroelements on the level of 25(OH)D, microelements and bone mineral density was analyzed. Results. In the autumn-winter period, 100 teenagers were included in the study. Vitamin D deficiency was found in 96 out of 100 adolescents, inadequate provision - in 4 people. The normal content of all studied trace elements was observed only in 4 out of 100 adolescents. Urinary calcium excretion was decreased in all adolescents. A low level of osteocalcin was found in 46 (48%) of 96 adolescents, an increased content of beta-cross lars - in 17 (18%). 46 out of 100 adolescents are diagnosed with osteopenia. Against the background of corrective therapy (n=73), there was a positive dynamics of the supply of vitamin D, micro-and macroelements, as well as bone mineralization. Conclusion. In adolescents, a high prevalence of vitamin D deficiency, diselementosis, combined with disturbances in the processes of bone tissue remodeling, was revealed.