Ryan assists athletes in designing a sports diet that is the foundation of their endurance and good health, with all of it based on the building blocks of a balanced diet: carbohydrates, proteins, and fats, along with fluid, vitamin, and mineral requirements. The changing nutritional needs of training, racing, and recovery are also clearly explained. Endurance athletes will learn how to assess body composition and find healthy approaches to losing body fat and building muscle. Ryan also gives practical pointers such as a review of popular ergogenic aids, tips on meal planning, typical shopping lists, sample menus, glycemic index of foods, facts about vitamins and minerals, and a comparison of sports nutrition products.