Jazz Jennings Details 100-Pound Weight Gain in 'I Am Jazz' Season 7 Trailer

In this first look at 'I Am Jazz' season 7, Jazz Jennings gets candid about her battle with binge eating, which resulted in a 100-pound weight gain. Jazz's family expresses their concerns for her health, as well as her ability to care for herself when she goes away to attend college at Harvard University. Plus, Jazz's brother, Sander, explores dating trans women, including 'RuPaul's Drag Race' alum Peppermint. 'I Am Jazz' premieres Tuesday, Nov. 30, at 9 p.m. ET/PT on TLC.