Bob Harper has opened up on his feud with The Biggest Loser co-star Jillian Michaels in the new Netflix documentary Fit for TV: The Reality of the Biggest Loser

For years, Bob Harper and Jillian Michaels appeared to have great chemistry onscreen while filming "The Biggest Loser" together. But a new docuseries about the NBC weight-loss competition has fans wondering if the dynamic duo actually got along in real life.

Jillian Michaels goes nuclear on Bob Harper and Netflix’s Biggest Loser docuseries: ‘This is false’ - Michaels posted an email chain with her and the ‘Biggest Loser’ producers on Tuesday