Nutrient timing influences muscle gain by optimizing when certain nutrients, particularly proteins and carbohydrates, are consumed relative to exercise. Consuming protein shortly after workouts promotes muscle recovery and synthesis, enhancing the effects of resistance training. Pre-workout carbohydrate intake provides the necessary energy for performance, helping maintain intensity levels during training. Timing these nutrients properly can maximize the physiological responses that support muscle growth and recovery, benefiting long-term muscle development. Overall, strategically planning nutrient intake around workouts is fundamental for athletes and those aiming to build lean muscle mass effectively.