During the training season, athletes require several key nutrients, notably carbohydrates, proteins, and fats. Carbohydrates provide the necessary energy for intense training and performance, while proteins are vital for muscle repair and recovery. Fats play a crucial role in overall energy balance and hormone production. Additionally, sufficient intake of vitamins and minerals, especially electrolytes like sodium and potassium, is important for hydration and muscle function. This balanced nutritional approach supports optimal athletic performance.