Jillian Michaels and Bob Harper – longtime trainers on “The Biggest Loser" – appeared inseparable on screen, but behind the scenes their friendship fell apart.

Season 15 winner Rachel Frederickson lost nearly 60% of her body weight, shocking viewers and health experts at the time. Fit ...

Netflix's new documentary Fit For TV: The Reality Of The Biggest Loser has caused quite a stir since its release, prompting big questions about just why a show promoting toxic weight loss advice was ...