Biggest Loser' trainer Jillian Michaels is disputing claims made against her in the Netflix docuseries 'Fit for TV,' about the weight-loss show.

Among other claims, Netflix’s “Fit for TV: The Reality of the Biggest Loser” alleges Michaels plied contestants with caffeine pills even though they were supposedly banned, restricted competitors’ calorie intakes to dangerously low levels, and denied medical care and medicine to some.

Dr. Robert Huizenga fired back at Jillian Michaels ’ claims after she accused those involved in the new Netflix documentary, Fit for TV: The Reality of the Biggest Loser, of lying about the use of caffeine pills on the show.