1. Cardiovascular System 2. Respiratory System 3. Gastrointestinal System 4. Renal System 5. Endocrine and Metabolic System 6. Reproductive System 7. Eyes 8. Bones and Joints 9. Skin, Hair, Nails, and Teeth 10. Central Nervous System 11. Mental Health 12. Cancer 13. Immune Boosters Glossary/Appendix of Common Natural Ingredients Index