A new biography is being written about pop princess Lady Gaga by Maureen Callahan titled “Poker Face: The Rise and Rise of Lady Gaga.” In the book, Gaga’s former tour manager David Ciemny claims Gaga has extremely dangerous dieting habits.

PopEater reports that in the book, Ciemny alleges that in 2009 alone, Gaga was hospitalized six times because of poor eating habits. Additionally the singer binged on junk food when not depriving herself of calories altogether.

In the book Wendy Starland is quoted as saying “The pressure on her to lose weight was very high.” Wendy help discover Stefani Germanotta before she changed her name to Lady Gaga.

Ashley Greene, who plays Alice Cullen in the Twilight films thanks her hectic work schedule for her figure, reports Perez Hilton.

“We were working 12 hours a day,” said the 22-year-old, “so it didn’t leave too much time to eat. We had a personal trainer and then we also had fight training. It was a good four hours a day of training.”

She said when she did eat on-set, it was really healthy stuff, and she also takes the time to do Pilates. “I do it early in the morning. It wakes you up and it’s kind of refreshing. And that is basically it. Sometimes cardio. I am not a big weight person because when I do weights I build muscle mass.”