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by tekgnos 2150 days ago
This study used a tiny amount of Vitamin D (2,00IU/day) which is absolutely not enough Vitamin D to have any affect on someone who is deficient. Going outside in a swimsuit produces 10,000+IU equivalent. We evolved nude, outdoors.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3356951/
1 comments
AQuantized 2150 days ago
It's not a tiny amount, probably about 40% of what most adults should be getting optimally, and significantly better than having almost no intake, which is the case for a lot of people who rarely go outside and don't eat any fatty fish.
link
tekgnos 2150 days ago
That's fair. The RDA at 400 is tiny.
link