Nutrition has a profound impact on muscle growth, as adequate protein intake is essential for repairing and building tissues. Consuming sufficient calories and macronutrients supports energy levels and encourages muscle synthesis. A balance of carbohydrates provides fuel during workouts, while healthy fats assist with hormonal balance. Timing of nutrient intake, particularly post-workout, is crucial to maximizing muscle development. Overall, proper nutrition is fundamental for achieving fitness goals and enhancing athletic performance.