Jillian Michaels, former trainer on the reality TV show "The Biggest Loser," has publicly criticized a new Netflix documentary that revisits the show and its behind-the-scenes controversies. Michaels denies claims made in the docuseries, particularly regarding the alleged banning of caffeine pills, and has threatened legal action against Netflix and some co-stars over what she calls falsehoods. The documentary also revisits notable contestants such as Rachel Frederickson, highlighting her 155-pound weight loss. Michaels has shared private texts and emails to dispute accusations about her conduct on the show. The series has drawn attention to the damaging effects the show had on some contestants' lives. Other figures connected to the show, including co-star Bob Harper and trainer Dolvett Quince, have also been part of the ongoing discussion. Meanwhile, the documentary has sparked broader reactions, including criticism from public figures like Rosie O'Donnell and resurfaced comments from Michaels’ ex-girlfriend Jackie Warner. The Netflix docuseries continues to generate debate about the impact and ethics of "The Biggest Loser."