All animals need specific Trace Minerals every day for every cell in their body. Horses are no exception. These specific Trace Minerals help maintain the health of the animal, which includes; bone development, muscles, eyes, heart and a strong immune system, to list a few. Stamina Plus uses 14 different Trace Minerals in their Complete Supplement and there Immune Power Plus. The source and bioavailability of each Trace Mineral has been extensively researched by Stamina Plus for the exact level needed to keep horses healthy and performing for the competitive edge.