Water, 35 litres. Carbon, 20 kg. Ammonia, 4 litres. Lime, 1.5 kg. Phosphorus, 800 g. Salt, 250 g. Niter, 100 g. Sulphur, 80 g. Fluoride, 7.5 g. Iron, 5 g. Silicon, 3g. And fifteen other elements. Those are the elements to make an average adult human body. You can buy these elemental ingredients at the market with the pocket money of a child. Humans are made so cheaply.