Chris Kresser has a new post on this topic which is a fairly short article and an interesting discussion. For those that enjoy reading the link follows. I'd suggest looking at some of the comments also. PR
"But in this article, I want to explore other side of the coin. When scientists and the public disagree, is it always the case that scientists are correct? Or is it possible—just possible—that consensus science may not be as infallible it is made out to be?"