Nutrient timing plays a significant role in optimizing fitness results by strategically scheduling nutrient intake around workouts. Consuming carbohydrates and proteins before exercise can enhance energy levels and improve performance, while post-workout nutrition is critical for recovery and muscle growth. Timing meals to align with exercise can help replenish glycogen stores and reduce muscle breakdown, promoting muscle repair. Additionally, proper hydration is essential before, during, and after workouts to maintain optimal performance. By focusing on when to eat, individuals can effectively maximize their training outcomes and accelerate progress toward their fitness goals.