When Rachel Frederickson revealed her weight loss on The Biggest Loser finale, even Jillian Michaels was agasp. Until now, though, she hadn't opened up about it.
"I was stunned," the trainer told HuffPost Live.
"I thought she had lost too much weight."
Michaels said the show implements a number of checks and balances, including having the trainers check in with contestants even after the ranch.
But she had no idea Rachel Frederickson had been losing so much on her own, bringing her weight loss total to a staggering 155 pounds (out of 260).
"In my opinion, this had fallen through those checks and balances," she said of The Biggest Loser winner and her controversial season-ending reveal.
Frederickson herself has since said she may have gone to an extreme, admitting: "Maybe I was a little too enthusiastic in my training to get to the finale."