What the government has told us to eat — since 1940

http://www.marketwatch.com/story/what-the-government-has-told-us-to-eat-since-1940-2015-02-20

Official recommendations on what you should be eating have changed again — and in some ways are a sharp departure from what we were told in past decades.

On Thursday, the Dietary Guidelines for Americans were released — the U.S. Department of Health and Human Services and the U.S. Department of Agriculture publishes these dietary guidelines every five years — and the authors had some new rules on what we should be eating.