I follow this doctor as I really like him and his research. Today I found this link where he talks about the danger and controversy of vitamin D and the test ranges for it.

You can click on the link and if you dont want to watch the video, I dont, I prefer to read, scroll on down and you can read.

Its very long and he presents a lot of info, some of which I need to reread, but for those supplementing with vit D its worth the read.


http://chriskresser.com/surprising-n...ing-our-brains