Study Finds Out Why Some 'Biggest Loser' Contestants Can't Stay Fit
A new study looked at the long-term impacts of rapid weight loss on "Biggest Loser" contestants, and the show could be doing more harm than good.By Grant Suneson | May 2, 2016
NBC’s show "The Biggest Loser" aims to help morbidly obese contestants get to a healthy weight. Over the years, lots of competitors have struggled to keep the weight off, and now scientists may know why.
A study in the journal Obesity tracked season 8 contestants after the show ended. More than six years later, 13 of the 14 people studied gained back some of the weight. Five were over or close to their starting weight from the beginning of the show. Researchers found this was due to their bodies’ shifting metabolism.
When someone loses weight, their body starts burning fewer calories to try to compensate. Usually, the body has time to gradually adjust. But sudden, rapid weight loss, like on "The Biggest Loser," could be too much of a shock for the body to handle.