Copper is necessary for the growth, development, and maintenance of bone, connective tissue, brain, heart, and many other body organs. It is involved in the formation of red blood cells, the absorption and utilization of iron, and the synthesis and release of life-sustaining proteins and enzymes. These enzymes in turn produce cellular energy and regulate nerve transmission, blood clotting, and oxygen transport.

Copper stimulates the immune system to fight infections, repair injured tissues, and promote healing. Copper also helps to neutralize "free-radicals" which can cause severe damage to cells.
Symptoms of copper deficiency include osteoporosis, osteoarthritis and rheumatoid arthritis.