A statistical error in the estimation of the recommended dietary allowance (RDA) for vitamin D was recently discovered; in a correct analysis of the data used by the Institute of Medicine, it was found that 8895 IU/d was needed
https://pubmed.ncbi.nlm.nih.gov/28768407/#:~:text=A%20statistical%20error%20in%20the,values%20%E2%89%A550%20nmol%2FL.
Yes, I've said that many times. Current guidelines prescribe a maximum of 800 IU. It gives me food for thought. There can always be calculation errors, but this one, which has been known for a long time, leads to underdosing. As I commented in the thread on vitamin D, this leads to higher sales of medicines and more profits for the pharmaceutical industry.
Btw, does anyone know why I can't open pubmed articles? I've tried with different browsers, I've also googled about the subject and I can't solve it.
Both the summary (above link) and the full article:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5541280/
open fine for me in SE Asia with firefox built from source code on a unix-like system.