TY CONF TI VITAMIN D - MODERN KNOWLEDGE ABOUT METABOLISM AND ITS ROLE IN HUMAN LIFE KW vitamin D KW metabolism KW deficiency JO II All-Russian Scientific and Practical Conference of students, teachers, practitioners "Education-Science-Practice" AU Bavdinova, R.M. AU Lukaschuk, T.S. PY 2025 PB Autonomous Non-Profit Educational Organization of Higher Education "Kuban Institute of Vocational Education"