Fat Camp What Book Is This?--Teen Girl Goes To Fat Camp?

What book is this?--Teen girl goes to fat camp? - fat camp

I started reading a book at random Books-A-Million, and not even take the time to write the title. This is a girl who goes to camp fat and one of the girls in the dorm, no one is overweight, her mother's eccentric high-society sends you every year, and all I can remember. He was in Teen on if it helps. Do not go very far, of course, but it was interesting. Help?