Macronutrients consist of carbohydrates, proteins, and fats, each playing vital roles in overall health. Carbohydrates are the body's primary energy source for physical activity, while proteins are essential for muscle repair and growth. Fats are crucial for hormone production and cellular health. Properly balancing these macronutrients supports performance, recovery, and overall fitness goals. Understanding the function of each macronutrient assists individuals in devising personalized nutrition strategies that align with their lifestyle and exercise routines.