I Used To Be Fat follows overweight teens as they share their personal struggles and triumphs. First, Jose yearns to lose weight to play college football and hopes trainer Joey can help.

Paul longs to become a police officer, but his weight is holding him back.

Trevor's dream of playing baseball in college is threatened by his weight. With the help of his coach, he sets out to change his habits and lose the weight

In order to lose weight, Deanna must contend with her volatile dad and learn to embrace her own inner strength.

Kellie channels all her feelings into her artwork, and eats for comfort. In order for her to lose weight, trainer Saran must break through her shell.

Kevin feels his mum babies him, and fears his extra weight has disappointed his dad. Can he learn to communicate with them and stop eating his feelings? (S2, ep6)

Once an accomplished athlete, conflict between Maya's divorced parents caused her to abandon sports and overeat. Trainer Joey is determined to help get her back on track.

A family tragedy is responsible for Jorine's eating habits. In order to change, and get rid of the extra pounds for good, Jorine will have to learn to talk to her family.

Trainer Saran must confront Rebecca's over-protective father in order to help Rebecca lose her weight.

After recovering from an illness that required the use of a wheelchair, Olivia must confront the weight she has gained.

Shy Gabriela is a loner. She finds it's easier to turn to food than to make friends. Can she learn to step outside her safety zone and find her self-confidence?

A young boy finds comfort in eating after his father abandons him. However, he wants to lose the weight before going off to college.

Since her mother's death, Lauren's become isolated and unmotivated. She comforts herself by cooking the fatty meals she used to prepare with her mum. Can trainer Yusef help her?