Tuesday night there was a new winner on The Biggest Loser. Since then, though, the public reaction seems to be concern that she did too well. 24 year old Rachel Frederickson went from 260 pounds to a very slender 105 pounds during the contest--about a 60% loss in body weight.

How did she do it? She eats 1600 calories a day and exercises constantly.

Social media hasn't been too kind, with people saying she's too thin.

Jillian Michaels and Bob Harper are not commenting. What do you think?