Extreme Weight Loss (originally titled Extreme Makeover: Weight Loss Edition) is a television program from ABC in which individuals volunteer to receive training and lifestyle changes from trainer Chris Powell (personal trainer) and his wife, Heidi Powell. The show is slightly based on the original concept of Extreme Makeover, where individuals receive life-changing makeovers. The exception is that this show focuses primarily on participants losing massive amounts of weight over one year and having a chance to receive plastic surgery to remove the excess skin from their bodies to finish their transformations. 因肥胖困扰生活的志愿者们接受健身教练Chris Powell和同样身为教练的妻子Heidi的训练，通过锻炼和改变生活方式进行为期一年减重。减重成功者有机会接受多余皮脂的切除手术，彻底改头换面。