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

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

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

The Biggest Loser franchise has mourned the deaths of some of the show's contestants over the years. NBC debuted the reality series in 2004, which followed a group of people deemed overweight who would compete in a 30-week competition.

S he was one of The Biggest Loser ‘s most popular contestant. Rachel Frederickson won the 15th Season of the NBC weight loss competition, however, she’s keeping a low profile.