auto t if you are looking to drop pounds or stay slim, it makes sense to reach for the locale diet foods. right? wrong. fake fats and artificial sweeteners can actually make you fatter. oh, man. that s why fox medical a team dr. marc siegel and the author of the new book the inner impulse is joining us live. good morning to you. let s start with the pringles. they have something in there called olestra or olean. it s a fake fat and people who eat them wind up gaining more weight? first of all, the study was done in rats so we don t know about people yet but i was pretty impressed with it. olestra has been on the market since 1996. it s a fat and it s not absorbed. you know what it does?