Introduction to nutrition for health, fitness, and sports performance -- Healthful nutrition for fitness and sport -- Human energy -- Carbohydrates: the main energy food -- Fat: an important energy source during exercise -- Protein: the tissue builder -- Vitamins: the organic regulators -- Minerals: the inorganic regulators -- Water, electrolytes, and temperature regulation -- Body weight and composition for health and sport -- Weight maintenance and loss through proper nutrition and exercise -- Weight gaining through proper nutrition and exercise.