angelina-jolie-skinny-230.jpgAngelina Jolie has received criticism over the years for her thin frame, and now it's being reported that the Oscar winner is intentionally starving herself. But why?

A source tells Us Magazine that Jolie, who travels the globe as a United Nations Goodwill Ambassador, "puts herself on fasts to make statements for the children she visits." Jolie has been with the UN for over ten years now, and she's made dozens of trips to countries in Africa and the Middle East. The source continues, "She says, 'If they can't eat, I can't eat.' [Jolie] does different cleanses from around the world. It's very dramatic, but that's how she gets."

So how does partner Brad Pitt feel about her drastic dieting? "He's worried about her and has made her see a zillion doctors, but they keep telling her she's fine," the source says.