Katie Holmes dumps best friend Victoria Beckham

Story: Splash news

Bride-to-be Katie Holmes dumped best friend Victoria Beckham because she could not handle the super-strict diet she put her on, according to U.S. reports.

Holmes and Posh surprised onlookers by suddenly becoming inseparable as Posh tried to help the former Dawson's Creek star get ready to wed Tom Cruise.

But U.S. reports say Holmes needed a break from the stick-thin British star because she was overwhelmed by the extreme diet she tried to force on her.

"No wonder Katie Holmes had to take a break from her new best friend, Victoria Beckham - she was starving," one insider said.

"The super-skinny soccer wife had been helping Holmes lose her baby weight, but it seems Beckham's dietary rules were too much."

The reports say that Beckham barely ever eats a full meal. "Victoria maintains her tiny frame because she only permits herself to snack - not eat - on edamame, pretzels and occasionally sushi," the insider told a New York newspaper.

"Beckham also is a Diet Coke fanatic and told pals she hasn't drunk water in years because she "hates the taste."