Season 15 winner Rachel Frederickson lost nearly 60% of her body weight, shocking viewers and health experts at the time. Fit for TV: The Reality of The Biggest Loser, a documentary about the show's complicated legacy,

The Biggest Loser is back in the spotlight more than 20 years after it first premiered on NBC. In the new Netflix docuseries Fit for TV: The Reality of The Biggest Loser, former contestants and producers reveal the intense reality behind the success of the weight-loss reality show.

Netflix’s newest docuseries interviews cast, crew, and contestants on how a reality show about weight loss changed their lives.

Rosie O'Donnell slammed Jay Leno and Bob Harper on Instagram after watching Netflix docuseries about "The Biggest Loser."

Rosie O'Donnell is never one to hold back. In an Aug. 19 Instagram post, she called out fellow TV icon Jay Leno for a mean-spirited 2009 segment from "The Tonight Show with Jay Leno," which was revisited in the new Netflix docuseries " Fit for TV: The Reality of the Biggest Loser ."

The Biggest Loser' was not without its flaws, but it also gave me lasting friendships and lessons,” season 14 winner Danni Allen said

Robert Huizenga spoke about his experience on 'The Biggest Loser' on the Netflix docuseries 'Fit for TV: The Reality of The Biggest Loser'

The Reality of the Biggest Loser," Danny Cahill shares his experience with the show. He shares how life is for him now.