Zinc affects our sense of smell, the skin, the nervous system and mental faculties. Medical research shows zinc as a key element in the treatment of type 2 diabetes, prostate cancer and Alzheimer’s disease. Zinc participates in major biochemical pathways and plays multiple roles in the perpetuation of genetic material.Deficiency of zinc may lead to impairments of dermal, gastrointestinal, neurologic and immunologic systems. Zinc affects both specific and non-specific immune functions. High-protein foods contain high amounts of zinc. Zincum mettalicum is the homeopathic zinc.