Fans weren't the only ones shocked by The Biggest Loser winner Rachel Frederickson's weight loss. Jillian Michaels herself was at a loss for words.
The personal trainer appeared flabbergasted by Frederickson's 155-pound weight loss (from 260 to 105) on the show's season 15 finale on Tuesday.
When the 24-year-old former high school swimmer walked out onstage for the first time since leaving the ranch last fall ... this was Jill's reaction:
Michaels could be seen mouthing "Oh my God" after looking at Rachel Frederickson. Several times, in fact, before NBC's camera panned away.
Shrinking from 260 pounds and a size 20 to 105 pounds and a size 0/2, she beat fellow finalists David Brown and Bobby Saleem for the $250,000 prize.
"It's crazy!" the 5-foot-4 reality star said. "But it's not about that. [My body] is absolutely the prize ... to have this energy and to feel alive means the world."
"I lost that athlete, I lost that inner confidence, that self-worth. Throughout the season I started to find that girl again, and at the triathlon, [she] was there.
She continued: "I embraced her, and I said, 'Run with her. Go take charge of your life. You've had this second chance, now use it. Don't ever let it go.'"
Did she go too far, though? That's what many observers are asking today.
1. Rachel Frederickson Before and After Photos
Rachel Frederickson before and after weight loss on The Biggest Loser. What a transformation.
2. Rachel Frederickson Before and After
Rachel Frederickson before and after the huge weight loss that won her The Biggest Loser championship!
3. Rachel Frederickson Before Weight Loss
Rachel Frederickson before her amazing weight loss on The Biggest Loser. She weighed 260.
4. Rachel Frederickson After Weight Loss
Rachel Frederickson after her weight loss on The Biggest Loser. She lost 155 of her 260 pounds, now weighing in at 105.
5. Rachel Frederickson on The Biggest Loser
Rachel Frederickson working hard to lose weight on NBC's The Biggest Loser. Mission accomplished and then some.
6. Rachel Frederickson, Biggest Loser
Rachel Frederickson won The Biggest Loser with this incredible weight loss transformation. She's only 105 pounds now!
7. Rachel Frederickson, The Biggest Loser
Rachel Frederickson, The Biggest Loser winner, lost a ton of weight! Those stats speak for themselves!
8. Rachel Frederickson, Biggest Loser Competitor
Rachel Frederickson, The Biggest Loser competitor and later winner. What a transformation she achieved.
9. Rachel Frederickson, David Brown and Bobby Saleem
David Brown, Rachel Frederickson and Bobby Saleem of The Biggest Loser fame. Which one of them won it all?
10. The Biggest Loser Season 15 Finalists
The Biggest Loser Season 15 finalists are ready for their final weigh-in. Rachel ended up winning it all.
11. Rachel Frederickson in Disbelief
Rachel Frederickson can't believe her weight loss on The Biggest Loser. Nor can viewers.
Her victory and competitive drive to win and win big has drawn major criticism from those who question the safety and ethics of The Biggest Loser.
Not everyone agrees, though, as Frederickson apologists will point out that she set out to turn her life around and win money, achieving both goals.
That's the point of the show, isn't it? You might question why it's the point of a show, but is it fair to Rachel to basically say she was too good at it?
You tell us: Rachel Frederickson on The Biggest Loser: Too skinny?