Well within in nonevangelicals, this article was popular for a while.
The Food Pyramid That Made Us Fat http://www.dailykos.com/story/2011/1/29/934261/-
Not to mention the anti-vaccine people on all sides of the political and religious spectrum.
This article really suggests to me a long term trend in the establishments loosing their credibility across multiple groups of people or at least that is the real issue.