Angelina Jolie likes to keep her frame pretty lean, but according to sources close to the star, her efforts to stave off fat have more to do with her humanitarian efforts than how she looks.
"[Angelina] puts herself on fasts to make statements for the children she visits," a source tells Us Weekly. "She says, 'If they can't eat, I can't eat. [She] does different cleanses from around the world. It's very dramatic, but that's how she gets."
Jolie travels the globe meeting the poor as a United Nations goodwill ambassador. Still, her dramatic attempts to look thin have her husband Brad Pitt perturbed.
"He's worried about her and has made her see a zillion doctors," says the source. "But they keep telling her she's fine."