I am made up of 65% oxygen, 18% carbon, 10% hydrogen, 3% nitrogen, 1.5% calcium, 1.0% phosphorus, 0.25% potassium, 0.25% sulfur, 0.15% magnesium, and approximately 0.7% of copper, zinc, selenium, molybdenum, fluorine, chlorine, iodine, manganese, cobalt, and iron, plus trace amounts of lithium, strontium, aluminumil, sicon, lead, vanadium, arsenic, and last but not least, bromine.