Nutrition significantly impacts energy levels during physical activity, as the body relies on a steady supply of nutrients for optimal performance. Carbohydrates serve as the primary source of energy, providing fuel for both aerobic and anaerobic activities. Adequate intake of proteins is essential for muscle repair and recovery, while fats provide sustained energy during extended exercise. Consuming a balanced diet before and after workouts ensures that energy levels remain stable, enhancing performance and endurance. Proper nutrition plays a crucial role in maximizing an individual's ability to engage in physical activity effectively.