Hitting the age of 50 is a milestone and definitely worthy of a few things, but in Cindy Crawford's case, that translates into writing a book. 

The model is writing all about her glittering career in the fashion industry and reflecting on the wisdom she has picked up along the way ahead of her landmark birthday next February.

But in the book, it's not all glitz and glam as you thought it would be, she also tells some of the downside's to having a modelling career.

"Unfortunately I was never one of those girls who could eat whatever I wanted and not gain weight (damn you Kate Moss!)," the Super writes in the tome, entitled  Becoming, reports Style. 

"Of course as soon as I told myself that I wasn't going to eat any sugar, bread, or whatever, all I could think of was sugar, bread or whatever!"

"I have finally settled on the idea of being 80 per cent good 80 per cent of the time. For me, that's doable."

There's a strong sense in the book that Cindy wants to raise awareness for what she believes in. 

"To my mind, the most important message I can promote and exemplify is one that supports diversity and health."

Cindy's book, Becoming, will hit shelves in the this month.