Copper is a mineral the body needs in small amounts to maintain food health. It works as a cofactor for several enzymes involved in energy production in the body. It may help with improving energy levels and promoting hair growth. It helps create bone, blood, and collagen. Foods rich in copper are liver, nuts and seeds, leafy greens vegetables, and dark chocolate. Copper and Zinc share the same pathway of entrance into the body, and when one is taken in excess, the other may become deficient. If possible, it is best to take these nutrients at different times of the day to ensure both get absorbed after ingestion.