Macronutrients are the nutrients that our bodies need in large amounts to function properly. They include carbohydrates, proteins, and fats. Each of these macronutrients plays a unique role in providing energy, building and repairing tissues, and supporting overall health. For example, carbohydrates are the body's main source of energy, while proteins help build muscles and repair cells. Balancing these macronutrients in our diet is essential for maintaining good health. Fruits, vegetables, whole grains, and lean meats are excellent sources of these nutrients. By understanding and managing our intake of macronutrients, we can support our body's needs and promote a healthy lifestyle.