Our bodies contain about 0.2 milligrams of gold, most of it in our blood

Our bodies contain about 0.2 milligrams of gold, most of it in our blood.

The human body is composed of many elements, including Gold in trace amounts.

According the technical treatise, The Elements Third Edition, written by John Emsley and published by the Clarendon Press, Oxford in 1998, the average person's body weighing 70 kilograms would contain a total mass of 0.2 milligrams of gold. The volume of this gold in purified form would be 10 nanoliters. If this refined gold were formed into a solid cube of purified gold, the measurement of each side of the cube would be 0.22 millimeters. 

By comparison, the human body contains 43 kilograms of oxygen, the most abundant element in the earth, as well as the human body. Other elements found in the human body include 16 kilograms of carbon and 7 kilograms of hydrogen. 

While the role of gold in the physiological processes of the human body was unknown for many years, it has recently been determined that gold plays a role in both the health and maintenance of the joints, as well as being a key element in the transmittal of electrical signals throughout the body. Of interesting note, the human body contains 1.0 gram of Silicon. This element is commonly found in the presence of gold in nature and its metabolic function is currently unknown.