I'm against because, for many years I've used natural remedies and herbs to take care of myself. When I go to the doctor, it's only for a PSA and cholesterol reading and that's it! I consult a herbal doctor and have my own herbal mixtures for particular vital areas of the body, and I also exercise. I always say. "If it ain't broke, why fix It". For most of my 56 years I've been fine, why would I change it now!