The doctors meet Glenn, whose stomach actually touches the floor, and successful slimmer Julia, whose new slim frame is draped in excess skin.
The doctors meet a couple with a combined weight of 52 stone, and a 21-year-old Mum who struggles to cope with her enormous breasts.
Dr. Christian meets Malissa Jones, the first teenager to undergo a gastric band operation. Dr. Pixie helps young mum Lisa, to overcome her compulsive eating habits.
The doctors assess the impact obesity has on fertility and meet a man with the largest breasts Dr. Pixie has ever seen.