A balanced diet plays a vital role in supporting muscle function during exercise by providing essential nutrients that fuel performance and recovery. Proteins are crucial for muscle repair and growth, while carbohydrates serve as the primary energy source. Healthy fats also contribute to prolonged energy supply. Micronutrients like vitamins and minerals help in muscle contractions and recovery processes. Staying well-hydrated facilitates nutrient transport and prevents fatigue. By consuming a range of nutrient-rich foods, individuals can enhance both their physical performance and overall health while exercising.