The human body's basic ingredients are water, fat, protein, vitamins, minerals, carbohydrates, ions, salt, bases, acids, carbon-dioxide, and hydrogen peroxide. The human body is made up of 2/3's of water and has enough iron to make a 3 inch nail. The human body's total amount of water can fill a 10 gallon tank. The human body has three basic elements. Oxygen (61% or 43kg), carbon (23% or 16kg), and hydrogen (10% or 7kg). The human body contains 8 pints of blood. If you were to somehow remove all of the DNA from a single sell and lay it all down by the ends, it would be 6 feet in length.