“Since the very first nutritional guidelines to restrict saturated fat and cholesterol were released by the American Heart Association in 1961, Americans have been the subjects of a vast, uncontrolled diet experiment with disastrous consequences. We have to start looking more skeptically at epidemiological studies and rethinking nutrition policy from the ground up.”
http://www.nytimes.com/2015/02/21/opinion/when-the-government-tells-you-what-to-eat.html