The document discusses proper nutrition and hydration for athletes. It states that an athlete's nutrition is just as important as physical training, and their body needs proper fuel from foods and fluids to perform. It emphasizes that carbohydrates from foods like fruits, vegetables, whole grains, milk and yogurt are the body's main fuel, while protein from foods like fish, meat, eggs, dairy and nuts are also important. Fats from foods like oils, avocado and nuts provide lasting energy. The document recommends foods over supplements for fuel, and advises staying hydrated by drinking fluids before, during and after exercise. Sports drinks can also help hydration when activities last over an hour.