This is great. I wonder if there's something like a patreon model where we could sponsor similar deep dives on other supplements?
For example, I've been supplementing with nicotinamide riboside for a few years now. I stop occasionally and when I do stiff and sore hands and knees return and I get more headaches.
I'd love to know if I'm deluding myself (placebo effect?) or there's good science that backs up my experience.
examine.com
Thanks!
The results from examine.com for nicotinamide are interesting, but not as focused or concise (or usable) as the vitamin D information in this posting.