EFFICACY OF VITAMIN-MINERAL DRINK IN CORRECTION OF VITAMIN PROVISION IN THE YOUNG SPORTSMEN (DOUBLE BLIND PLACEBO -CONTROLLED STUDY)
The study is a double-blind placebo-controlled prospective comparative medical supervision. Vitamin provision rate was determined by two methods: by calculation of dietary intake and by laboratory analysis (determination of the vitamin rate in the blood serum). The analysis of the dietary intake of young swimmers under the conditions of physical activity showed the prevalent nutritive deficiency, and mostly vitamin deficiency. The initial vitamin provision rate the amount of vitamin E was below the normal one in 30,8% of children, that of vitamin B <sub>2</sub> — in 53.8%, that of beta-carotene - in 79,5%, the concentration of ascorbic acid in the blood serum was at the top normal point in two thirds of athletes under examination. was higher than the upper limit of normal. We estimated the tolerance and effect of vitamin and mineral drink (it contains 13 vitamins dosed from 28 to 94 per sent of an age daily norm) on vitamin and electrolyte status of children aged 11-17 engaged in swimming after using it regularly during 21 days. The placebo-controlled study demonstrated the possibility of optimizing the vitamin status of young sportsmen by vitamin-mineral drink supplementation.