The prostate gland is an organ that can be the source of many problems, especially for older men. Hormonal changes, mainly of testosterone to dihydrotestosterone, may result in pathological hypertrophy of the prostate. Therefore, an appropriate prophylaxis is very important. A well-matched diet supplementation may also be helpful. This group of supplementation includes a whole lot of plant extracts and biologically active substances, but the most important are: saw palmetto, which is blocking conversion of testosterone to harmful dihydrotestosterone; zinac, which is beneficial in the region of the prostate; antioxidants to combat free radicals and stinging nettle which is slowing down the abnormal growth.