7. Ali Vincent
Ali Vincent was the first female winner of the show. She won in season 5 and since then, has gained a lot of weight. She started with 234 lbs, and ended at 122 lbs, losing an amazing 112 lbs and winning the title. However, the success did not last for long as she soon started regaining her old weight and now weighs over 200 lbs. Regaining weight made her feel like a failure but she now claims to feel proud of herself and has accepted her body, ignoring the public ridicule and shame. We bet you wouldn’t have expected one of the contestants to be like Vincent. Way to go Ali!