I had been taking NAD for a couple years. But I thought I heard the guy at MIT who runs the aging clinic there say in a youtube online that NAD can cause the prostate to balloon. Mine has become quite large so I stopped the NAD.
I’ll need to find that utube again so as to be sure I heard that correctly.
It would be cool if I could contact that MIT guy directly but likely he doesn’t talk directly to the public.
Prostate inflammation vs cancer and NAD:
https://www.scitechnol.com/peer-review/nad-in-cancer-prevention-and-treatment-pros-and-cons-zR4d.php?article_id=5285