Carbohydrates play a vital role in sports nutrition by providing the necessary energy for both training and competition. They are the primary fuel source for muscles during high-intensity workouts and are essential for replenishing glycogen stores after exercise. Proper carbohydrate intake supports prolonged endurance, enhances recovery, and helps maintain overall performance levels. Athletes must carefully time their carbohydrate consumption, consuming adequate amounts before, during, and after exertion to optimize performance and recovery.