Oxygen (65% )
Carbon (18% )
Hydrogen (10% )
Nitrogen (3% )
Calcium (1.5% )
Phosphorus (1.0% )
Potassium (0.35% )
Sulphur (0.25% )
Sodium (0.15% )
Magnesium (0.05% )
Copper, Zinc, Selenium, Molybdenum, Fluorine, Chlorine, Iodine, Manganese, Cobalt, Iron (0.70% )
Lithium, Strontium, Aluminum, Silicon, Lead, Vanadium, Arsenic, Bromine (trace amounts)