The Meatrix
I have always joked about being a meatatarian, though for a period of time when I was a health nut I ate little meat. If one wanted to cut meat consumption (which is something I should want to do at my current weight!) then one of the best things to is watch The Meatrix.
Follow that by reading up on how some Fox investigative reporters were fired for wanting to report on health issues (including cancer) caused by giving cows rBGH.