Galaxy is right, the prostate uses a lot of zinc. I know also that Vit. E helps, along with ginseng. I've been taking MACA, zinc and Vit. E along with lecithin granules and I've noticed a HUGE difference in volume.
Zinc can help but gensing capsules can increase volume and you dont have to go w/o for a week. Not sure what MACA is but do know that the best thing is Male feul which has Yohimbe and gensing in it- take that and you be hitting the roof