The Grapefruit Diet, also known as the Hollywood Diet, is an 18-day diet, that dates back to 1930 Hollywood.

First she brought us The Black Book of Hollywood Beauty Secrets, and now she’s letting us in on superstar dieting tricks in her new book The Black Book of Hollywood Diet Secrets with co-author Cindy Pearlman. All our favorite celebs are spilling the beans: Oprah, Demi, Gwyneth, even our favorite supermodel Mom, Heidi Klum!

Oh, to be a celebrity, they have all the good secrets. That’s why we’re such big fans of Kym’s books. First she brought us The Black Book of Hollywood Beauty Secrets, and now she’s letting us in on superstar dieting tricks in her new book The Black Book of Hollywood Diet Secrets with co-author Cindy Pearlman.

"The Black Book of Hollywood Diet Secrets", written by authors Kym Douglas and Cindy Pearlman reveal what celebrities do to maintain their perfect figures. Some of the celebrities mentioned in the book include: Halle Berry, Jessica Alba, Lucy Liu, Heidi Klum, Jennifer Aniston, Sienna Miiler

Popular Hollywood diet plan, offers to lose up to Lose 15.4 - 17.6 lbs

Diet secrets of the Hollywood set that have been meticulously collected from their doctors, nutritionists and personal trainers are set to be published in a new book out this month called The Black Book of Hollywood Diet Secrets by Cindy Pearlman and Kym Douglas.