Description For decades we've been told gaining and losing weight is all about the calories. Just one little problem: the research says otherwise. Diabetics undergo dramatic weight changes when they adjust their insulin levels -- and so do you. Your diet determines how much insulin your body will produce over time. From the documentary "Fat Head."weight loss, diet, fat head, tom naughton, documentary, comedy, calories, insulin, losing weight, obesityWhy You Got Fathttp://gdata.youtube.com/feeds/api/videos/LgBLQIJEcbE2007-12-15T05:19:45.000Z2012-05-27T22:46:39.000ZFat Head TrailerTrailer for the comedy documentary "Fat Head: you've been fed a load of bologna."FatHeadMoviehttp://gdata.youtube.com/feeds/api/users/FatHeadMovieEntertainmentTrailer for the comedy documentary "Fat Head: you've been fed a load of bologna."