Diet for athletes can seem complex. The demands on your body are different than non-athletes. Carbohydrates are the main fuel source your body relies on during exercise. So including a carbohydrate rich foods in every meal and snack is important. The harder the effort, or longer an athlete is exercising, the more carbohydrates your body will need. Besides carbohydrates, it is important to include a variety of foods like fruits, vegetables, protein and healthy fats. When planning your meals, especially when dealing with fruits and vegetables, its important to include a wide variety of colors to get the most health benefit out of each meal.