1. Why Eat?, 2. Diet and health: the diseases of affluence, 3. The chemical basis of life, 4. Chemical reactions: enzymes and metabolic pathways, 5. The role of ATP in metabolism, 6. Digestion and absorption, 7. Energy nurtrition: the metabolism of carbohydrates and fats, 8. Overweight and obesity, 9. Protein-energy malnutrition: problems of undernutrition, 10. Protein nutrition and metabolism, 11. The integration and control of metabolism, 12.Micronutrients: the vitamins and minerals, Appendix One: Units of physical quantities; multiples and submultiples of units, Appendix Two: The nutrient yields of some common foods.