What are people made of?

  1. Oxygen (65%)
  2. Carbon (18%)
  3. Hydrogen (10%)
  4. Nitrogen (3%)
  5. Calcium (1.5%)
  6. Phosphorus (1.0%)
  7. Potassium (0.35%)
  8. Sulfur (0.25%)
  9. Sodium (0.15%)
  10. Magnesium (0.05%)
  11. Copper, Zinc, Selenium, Molybdenum, Fluorine, Chlorine, Iodine, Manganese, Cobalt, Iron (0.70%)
  12. Lithium, Strontium, Aluminum, Silicon, Lead, Vanadium, Arsenic, Bromine (trace amounts)

and the last thing is muscles and bones which are the main formation materials of body