This guide looks at the athlete's nutrient needs and presents recent findings from physiology- and nutrition-related research which have direct bearing on athletic performance. Contents include sections on: (1) nutrition basics; (2) water needs of athletes; (3) nutrient fuels for sports; (4) diets for athletes; (5) body composition; (6) weight control; (7) myths about sports and nutrition; and (8) appended lists of foods, recommended daily dietary allowances, and sources for skinfold calipers. Twelve handouts for athletes are included which contain highlights on basic information on nutrition, diet, and training. This information is combined with instructions to athletes for reaching their nutritional peak for competition. (JD)