Mockery, dangerous weight loss practices and long-term health impacts — “The Biggest Loser” was a TV phenomenon that shaped how Americans view weight.

Rachel Frederickson became famous after winning Season 15 of The Biggest Loser in 2014. Her dramatic weight loss, from 260 lbs to 105 lbs, gained both admiration and backlash. Now that Netflix’s new documentary Fit for TV: The Reality of The Biggest Loser is streaming,

The Reality of ‘The Biggest Loser’ premiered on August 15, 2025, on Netflix. The three-part docuseries examines NBC’s The Biggest Loser, with all episodes released simultaneously.

Why Jillian Michaels is under fire due to a controversy unrelated to new Netflix documentary Fit for TV: The Reality of the Biggest Loser.

Danny Cahill tells Fox News Digital that "there are a lot of things that were left out." Cahill appears in the new Netflix documentary "Fit for TV: The Reality of the Biggest Loser."

Rachel Frederickson won The Biggest Loser Season 15 in 2014 after losing a staggering 155 pounds, dropping from 260 pounds to just 105, meaning she’d shed nearly 60% of her body weight over the course of the competition. When she stepped on stage at the finale, viewers, fellow contestants, and even the show’s trainers appeared visibly stunned.

Netflix's tell-all docuseries about 'The Biggest Loser' featured interviews with former contestants, trainer Bob Harper and more — but not Jillian Michaels

The new docuseries hit the 2025 TV schedule on Friday, and one of the biggest bombshells came from Season 8 contestant Tracey Yukich. The then-37-year-old collapsed during a mile run on the beach during their first day on the show and had to be airlifted to the hospital. Yukich described what she experienced, saying: