1. Major Molecules in Foods and their Important Functions 2. Carbohydrates 3. Amino Acids 4. Proteins 5. Lipids 6. Nucleic Acids 7. Enzymes 8. Hormones 9. Structure and Function of Water Soluble Vitamins 10. Structure and Function of Fat Soluble Vitamins  11. Digestion, Absorption and Metabolism of Nutrients 12. Metabolism of Carbohydrate 13. Metabolism of Protein  14. Metabolism of Fat