I'd totally write a book like that, but then, years later when it becomes a sensation and must read for all far chicks with a huge, loyal fan base, I'll release a "special edition" publication and have them all pre order the book in advance before it's published.  What's so special about the special edition? At the end, the fat protagonist loses weight and discovers how much better life is when you don't overeat while acknowledging how much of an insecure bitch her fat self was.