Includes bibliographical references and index.

Nutrition : making it work for you -- The human body : are we really what we eat? -- Carbohydrates : plant-derived energy nutrients -- Fats : essential energy-supplying nutrients -- Proteins : crucial components of all body tissues -- Vitamins : micronutrients with macro powers -- Minerals : buildings and moving our body -- Fluid balance, water, and alcohol -- Achieving and maintaining a healthful body weight -- Nutrition and physical activity : keys to good health -- Nutrition throughout the life cycle -- Nutrition issues : the safety and security of the world's food supply.