Ex tour manager claims Lady Gaga has an eating disorder

LAS VEGAS - AUGUST 13: (NO ARCHIVES/EDITORIAL USE ONLY) Recording artist Lady Gaga performs during a stop of The Monster Ball Tour at the MGM Grand Garden Arena August 13, 2010 in Las Vegas, Nevada. The singer is touring in support of the album, 'The Fame Monster.' (Photo by Ethan Miller/Getty Images)

Lady Gaga’s former tour manager has claimed that the singer has an eating disorder – and even ended up in hospital several times because of it.

David Ciemny has claimed that Gaga has a severe eating disorder that placed her in the hospital SIX TIMES last year, reports Hollywoodlife.com.

“When I say she was sick, I mean physically and mentally,” David says in his new tell-all book Poker Face: The Rise and Rise of Lady Gaga.

He describes being on tour with Gaga as a sick experience, saying she binged on sweets and other unhealthy foods and then would stop eating for weeks on end to fit into her body-baring stage costumes.

He even claims that the wacky pop star managed to lose 20lbs between fittings.

In the past, Gaga has been quoted as saying: “It’s all about starvation! Pop stars don’t eat,” to US Weekly.

Could it be true?