Is nutritional epidemiology fake science?

An example of the lack of science in nutritional epidemiological data

http://ije.oxfordjournals.org/content/early/2015/05/26/ije.dyv039.abstract?sid=bbf735e2-4bca-4644-8ceb-af5c7526f09a

http://www.mayoclinicproceedings.org/article/S0025-6196%2815%2900319-5/fulltext

http://reason.com/archives/2015/06/13/new-article-blasts-feds-pseudoscientific

Most dietary data is based on people recalling what they ate. This has allowed for dietary guidelines to be formed, but there's a small problem: the data could be wildly inaccurate, and dietary guidelines completely wrong.