Put your body in motion with gentle moves that work every major muscle group to ignite your metaboli...

Take your makeover to the max with calorie-crunching cardio, a Sprint Circuit of quick total-body mo...

An ambitious 21-year-old woman who weighs nearly 400 pounds embarks on a one-year challenge in hope...

A 23-year-old man tries to fulfill a promise he made to his late mother to lose weight and lead a he...

45-year-old bachelor Dana tries to lose weight and reclaim his life.

Weighing in at 651 pounds, James, a 25-year-old former football player from Fort Worth, Texas, becom...

A young woman works to lose weight and in the process must face the secret that lead to her becoming...

Wally, 26, a young father who weighs 490 pounds and whose wife is uncertain if her husband will be a...

Staci, 30, a 456-pound married mom caring for her husband and their two young children, while doing...

Krista, 34, a devoted mother whose care for her developmentally-disabled daughter has taken a tremen...

A 543-pound man works to get healthy so he can be a better father and husband; the Harlem Globetrott...

Twins David and Rebecca are split up as they tackle a 90-day weight-loss challenge.

An adopted woman named Meredith tries to reach her goal weight of 155 pounds and gain the confidence...

Chris helps a woman -- who blames her obesity for her daughter's death -- to get healthy.

Avid basketball fans, twins Robert and Raymond -- who start out at 381 and 378 pounds, respectively...

A tragic accident inspires a 399-pound firefighter to change his life; a 331-pound former college ba...

Chris and Heidi help a formerly fit couple get back in shape for their wedding day; David Tutera, Ro...

A couple postpones their wedding so that they can lose weight. Their goal: to be able to wrap their...

Tiffany, an autism activist and single mother of an autistic teenager, battles her past history of e...

Born with a winning spirit, Rachel began dancing at three years old. As Rachel grew older, her spiri...

A former professional football player who weighs 531 pounds wants to get in shape before meeting the...

Hannah, a successful career woman who weighs 310 pounds, seeks help after learning she is too heavy...

A 262-pound, 53-year-old woman who is also a hoarder is helped.

A one-time fit athlete, who added more than 100 pounds after her baby suffered brain damage from Sha...

Hannah, a successful career woman who weighs 310 pounds, seeks help after learning she is too heavy...