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

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.

Jillian Michaels was a coach alongside Bob Harber on 'The Biggest Loser' in 2004 and has continued talking about fitness, politics and health. Here's everything to know about where Jillian Michaels is after starring on 'The Biggest Loser' in 2004.

THEY dropped jaw-dropping amounts of weight on The Biggest Loser – but what happened after the cameras stopped rolling? The reality show that promised life-changing transformations has been

Tracey Yukich tells Fox News Digital that she learned a lot about herself on the show. Yukich appears in the new Netflix documentary "Fit for TV: The Reality of the Biggest Loser."