If you search for the best prostate supplement, you will find that the chief ingredients are Saw Palmetto, Zinc, Pumpkin seeds, and plant sterol complex. Vital Flow is the best supplement for the prostate because it contains more than twenty essential herbs for the prostate, including saw palmetto, zinc, and pumpkin seed. It consists of all the essential prostate supportive nutrients to help support urine flow and combat bladder issues and decreases libido.