Research Progress of Creatine Sports Nutrition Supplements on Improving the Physical Fitness of Athletes

With the development of sports nutrition, creatine, as a sports nutrition supplement, has shown remarkable effects in improving sports performance, strengthening muscle strength and endurance. In this paper, creatine's physiological effects and the mechanism of use, side effects and safety studies, the impact on sports performance, the application in athletes and the collocation of daily nutrition intake were reviewed. Studies have shown that creatine supplements improve athletes' performance in short bursts of high-intensity exercise by increasing creatine phosphate storage in muscles. Although creatine supplements are considered safe in most cases, further research is needed on the effects of side effects and dosages. Future research is needed to explore the optimal use of creatine, its use in specific populations, and its combination and intake with other nutrients.