Nutrition plays a fundamental role in supporting athletic performance by providing the fuel and nutrients needed for energy production, muscle repair, and recovery. Carbohydrates are particularly important for fueling endurance activities, while protein is essential for muscle repair and growth. Adequate hydration is also crucial for maintaining optimal performance and preventing dehydration, which can impair both physical and cognitive function during exercise. Additionally, micronutrients such as vitamins and minerals play vital roles in various physiological processes that affect performance.