This post was originally shared by Russ. The “I” in the copy is him.
I’m sure there’s more to the study than the article is sharing. However, vitamin D is a fat soluble vitamin so any long exposure of a high dose should cause a problem. I have looked at some studies in the past and what I have found is that you would need to be using somewhere in the 50,000 IU a day to cause a problem. Interesting who funded the study. Seems to go against their best interest.