Docu-Series Chronicles One Summer that Changes the Lives of High School Seniors as They Prepare to Embark on a New Life in College Promo I Used To Be Fat - MTV Shows Trailer I Used To Be Fat - MTV Shows NEW YORK, NY (December 9, 2010) – MTV takes viewers on a journey following overweight teens as they share their personal struggles and triumphs in “I Used to be … [Read more...] about MTV docu-series “I Used to be Fat” follows teen struggle to lose weight