Carbohydrate cycling involves varying carbohydrate intake to optimize fitness results. By alternating high-carb and low-carb days, athletes can enhance their performance, improve body composition, and increase endurance while minimizing fat storage. On high-carb days, glycogen stores are replenished, supporting higher energy levels during intense workouts. Meanwhile, low-carb days can promote fat burning, helping in weight management and improving metabolic flexibility. This strategic approach can lead to better muscle recovery and overall progress in reaching fitness goals, making it a popular method among serious fitness enthusiasts.