Actress Rene Russo is sick of critics who poke fun at her skinny frame and suggest she has an eating disorder.

The IN THE LINE OF FIRE star is often rudely asked if she suffers from anorexia nervosa, but insists she eats more than most people she knows.

Russo says, "I do eat a lot of food. People say, 'Are you anorexic?' I got that the other night and it really p**sed me off.

"I'm actually naturally lanky... my arms are longer than Clint Eastwood's arms."

Russo claims there's one part of her body that she can't keep trim: "It all goes to my a*s. I eat a doughnut and it's junk in the trunk."