The former trainer on the weight loss bootcamp series hits back at claims made in a new Netflix docuseries, 'Fit for TV: The Reality of the Biggest Loser.'

The docuseries also featured former “Biggest Loser” contestants who alleged that Michaels ... Lastly, Michaels addressed the appearance of contestant Rachel Frederickson, who was crowned the winner of Season 15 after she lost 155 pounds.

After winning The Biggest Loser, Frederickson continued to work as a voice-over actress. In her Today essay, she wrote that she was taking college classes, volunteering at a local shelter, training for her first marathon and starting a new career at a job search website.

Just days after "The Biggest Loser" docuseries premiered, Jillian Michaels took to social media to refute a series of claims made by former contestants and co-star Bob Harper.

Rachel Frederickson is opening up about the backlash she was subjected to after being crowned the winner of season 15 of “The Biggest Loser” in February.

Netflix’s new docuseries about "The Biggest Loser" revisits the controversial weight loss program's triumphs and missteps.