there's 1000000 studies on this but I'll just drop this
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3180407/
Why are some people advising to take high doses of this vitamin?
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3180407/
Why are some people advising to take high doses of this vitamin?