Copper is a trace mineral that is required in many physiological functions: the formation of hemoglobin from iron, works in balance with zinc and vitamin C to form the protein elastin which increases the tensile strength of the elastic fibers in blood vessels (preventing aneurysms), skin (youthful appearance), and vertebral discs.  Copper functions as a cofactor and activator of numerous cuproenzymes that are involved in the development and maintenance of the cardiovascular system.  It is important in the proper utilization of super-oxide dismutase (SOD), a copper-dependent enzyme critical to antioxidant protection within the red blood cells.  Copper  is also needed for healthy nerves and joints, energy production, hair and skin pigmentation, and taste sensitivity..

The level of copper in the body is inversely related to the levels of zinc and vitamin C.  A reasonable balance should be maintained between the three.  If copper intake is too high, levels of vitamin C and zinc drop.