ВИТАМИН D3 И ПСИХИЧЕСКОЕ ЗДОРОВЬЕ СПОРТСМЕНОВ: РОЛЬ В РЕГУЛЯЦИИ ТРЕВОЖНОСТИ И ВНУТРЕННЕЙ МОТИВАЦИИ

The article examines the role of vitamin D3 as a significant factor in athletes' mental health. The mechanisms of its influence on the central nervous system are analyzed, including the regulation of amygdala activity and neurotransmitter synthesis. The association between vitamin D3 deficiency and increased anxiety, reduced internal motivation, and risk of burnout syndrome is demonstrated. Special attention is paid to seasonal fluctuations in vitamin D3 levels and their impact on psychological resilience during periods of intense physical loads. The feasibility of incorporating screening and correction of vitamin D3 deficiency into psychological training and recovery programs is substantiated. Relevance. Athletes’ mental health directly affects performance stability. Under intense training, the risk of anxiety and burnout increases. The role of micronutrients, particularly vitamin D3, in maintaining psychological resilience remains insufficiently studied. Problem, aim, objectives. The connection between vitamin D3 deficiency and emotional state in athletes is understudied. Aim: to identify the relationship between D3 levels and manifestations of anxiety and reduced motivation. Objectives: analyze deficiency prevalence, assess seasonal fluctuations, formulate practical recommendations. Materials and Methods. A systematic literature review was conducted using eLibrary, CyberLeninka, and PubMed (2017–2025). Comparative analysis, classification, and data synthesis methods were applied. Peer-reviewed Russian journals were included. Results and Discussion. Vitamin D3 deficiency or insufficiency was found in 84.27% of the Russian population [6, p. 86]. Low 25(OH)D levels are associated with amygdala hyperactivity, decreased serotonin and dopamine, increasing anxiety [1, p. 90; 3, p. 57]. Deficiency is more pronounced in female athletes [2, p. 117], and seasonal drops of 30–40% coincide with training camps [5, p. 152]. Conclusions. Vitamin D3 deficiency is a risk factor for anxiety and low motivation in athletes. Regular 25(OH)D screening twice a year, supplementation (1000–4000 IU/day), and integration into psychological support programs are recommended as non-pharmacological strategies to maintain mental health.