Balancing macronutrients supports exercise performance by providing the necessary fuel for energy, recovery, and muscle growth. Carbohydrates serve as the primary energy source, especially during high-intensity workouts, while proteins are crucial for muscle repair and growth. Healthy fats play a role in longer-duration activities, helping to sustain energy levels. Properly managing these nutrients ensures optimal performance, enhances endurance, and aids recovery. By tailoring macronutrient intake to individual goals and activity levels, athletes can achieve better results and improved overall health.