America's favorite trainer, Jillian Michaels, may be leaving The Biggest Loser once and for all. It would be sad to see her go, but Michaels has not been impressed by the weight-loss controversy following the Season 15 winner, Rachel Frederickson's 155-pound weight loss.

Michaels' departure from The Biggest Loser isn't confirmed yet, but she was apparently disappointed with the shocking result in the latest finale episode. Jillian told HuffPo, "We are allowed to speak with our contestants after they go home...but no one had told me, 'Hey Rachel is very, very thin.' Bob and I had no idea. Nobody had told us...so yes, I was stunned." Although Michaels wasn't Rachel's trainer but said, "Obviously, I thought she has lost too much weight and I was immediately concerned and wondering how this happened, how no one had said something to me and how the checks and balances that have been put into place, in my opinion."

In addition to the Frederickson's extreme weight-loss, Jillian also dealt with her own controversy last season after she was caught "cheating" by giving her contestants a caffeine supplement, which violates the rules of the show. Although the team was penalized, Jillian Michaels stood by her decision saying, "I stand by my opinion. A caffeine supplement is significantly healthier than unlimited amounts of coffee." Her only regret in that decision was her team suffering from "the consequences of my professional opinion."

Jillian Michaels can be the scariest individual on TV sometimes, but there's no doubt that she would be sorely missed by The Biggest Loser fans if she is, in fact, leaving the show. 

Photo courtesy of NBC