Keira Knightley has hit out at speculation she has an eating disorder - and credits her genes for her slim physique.

The King Arthur actress is adamant her figure is naturally slight, and insists she rarely works out to maintain her ultra-toned midriff.

Knightley says, "My dad's (WILL KNIGHTLEY) tall and thin, so this is my body.

"I can pretty well eat anything I want and I don't work out as I find it very boring."

But the 19-year-old admits there has been a history of eating disorders in her family.

She adds, "Saying that, however, my grandmother had anorexia in the 1940s - a time when it wasn't fashionable to be thin."

04/01/2005 17:54