The most common uses for copper gluconate as a health supplement include supporting healthy levels of testosterone and red blood cells; can help maintain healthy testosterone levels. The mechanism for this effect is the inhibition of the conversion of testosterone to estrogen. It is also used to support bone growth and the immune system. Copper is essential for the efficient extraction of iron from dietary sources. This effect may allow the copper gluconate to support a healthy concentration of red blood cells. Copper gluconate can help maintain the immune system, since copper is essential for the production of white blood cells. It is also used in the treatment, control, prevention, and improvement of the following diseases, conditions and symptoms: copper deficiency, wound healing, osteoarthritis, and osteoporosis.