[hmd_imputer]

Just a few days ago there was an article which claimed that Vitamin D supplements were useless (also referring to scientific research). Seriously, at some point, one starts not believing anything related to vitamins, since they seem to contradict one another all the time.

[sojournerc]

Supplemental vitamin D is not as effective as that naturally produced by exposing skin to the sun.

This is perhaps what you read, and doesn't invalidate thre findings here.