Advances in the study of sports nutritional supplements to enhance athletic performance

With the increasing emphasis on health and sports, enhancing sports performance has become the focus of attention for many athletes and sports enthusiasts. Sports nutrition supplements, as an important auxiliary tool to enhance sports performance, have received extensive attention in scientific research and practical application in recent years. In this paper, we systematically review the mechanism of action and the latest research progress of mainstream sports nutrition supplements, such as proteins, creatine, caffeine, β-amino acids, nitrates, etc., and discuss their effectiveness, safety and individualized application in different sports scenarios. It was found that the scientific use of supplements can significantly improve the efficiency of strength, endurance and recovery, but it needs to be combined with the type of exercise, dose optimization and individual differences. Future research should focus on the development of novel supplements, precise nutritional strategies, and the evaluation of long-term health effects.