Athletes should prioritize essential nutrients such as carbohydrates, proteins, healthy fats, vitamins, and minerals in their diet. Carbohydrates provide the necessary energy for performance, while proteins are vital for muscle repair and growth. Healthy fats support overall health and energy levels. Additionally, hydration and micronutrients like calcium and iron are important for physical and mental performance. A well-rounded diet tailored to their energy needs and training schedule enhances athletic performance and supports recovery.