Zinc is an essential mineral nutrient found in different body parts. The prostate has the highest concentration of zinc than any other body part invariably. Zinc is a principal ingredient of metalloproteins that are important for the immune system, antioxidation, and DNA synthesis. According to studies and clinical trials, zinc has shown protective effects and regression of abnormal cellular growth in prostate cancer patients. It inhibits cellular growth by inhibition of antiapoptotic protein and nuclear factor κB.