This is what the Biggest Loser is about and always has been. It's not that different from Survivor. The winner is dehydrated, malnourished and exhausted all in the hope of being a few $$$ richer.
And why are we so particularly critical of a female contestant who won with 59.6% loss of body fat. A male contestant had lost 55% body fat compared to her 59.6. If he looked gaunt would the reaction been less vocal?
I don't watch the show because it bothers me to see how some of the contestants are treated. The weight loss pressure in the time frame allowed is not smart or healthy. (Subject of another blog)
Realize that it's a contest. If you don't like the process or the outcome vote with your eyes and stop watching the show but don't attack Rachel for trying to win a game show.
Similar to this show, your own physical condition as 'fat' ,'skinny', or anything in between does not bring about happiness and acceptance. Look at all the backlash she received after she won. Treat yourself right. Eat healthy and take your favorite fitness class. ;p