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.

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

For those less familiar, let's take a look at who Jillian Michaels is and what she's been up to since the Biggest Loser wrapped – and what we know so far about her decision not to appear in the Netflix docuseries,

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.

Despite working together on The Biggest Loser, Jillian Michaels and Bob Harper's offscreen friendship was quite different — but where do they stand now? NBC's The Biggest Loser, which premiered in 2004,

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.