The Reality of the Biggest Loser is on Netflix, find out why host Alison Sweeney left the show and what she does now.

Michaels was a trainer on “The Biggest Loser” for seasons 1, 2, 4-11, 14, and 15. She often motivated contestants by yelling at them or insulting them. In one clip from “Fit for TV: The Reality of the Biggest Loser,” Michaels pushes a woman to keep exercising even after she vomits on a treadmill.

Netflix is dropping this three-part docuseries called Fit for TV: The Reality of the Biggest Loser on August 15, 2025. If you ever wondered what went down behind the scenes on that show, this is your ticket. You can stream it anywhere, anytime, as long as you’ve got Netflix.

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.

In a new three-part documentary titled Fit for TV: The Reality of the Biggest Loser, Netflix takes a deep-dive into The Biggest Loser, interviewing former contestants, coaches, and health experts to uncover "the true story behind the hit weight loss reality show. "

Netflix’s three-part docuseries revisits the reality TV phenomenon as director Skye Borgman and EP Michael Gasparro reveal its most dramatic fights, jaw-dropping moments, and lasting scars.