Check out this article on Japanese attitudes towards weight. I feel almost like the author is saying "Gee, if Japanese women can lose weight and keep it off, what's wrong with Americans?"
They say the rates of anorexia and bulimia aren't any higher over there than they are here, but I have to wonder if that's because the idea of an average-sized woman not eating because she wants to be thinner is so widely accepted as normal. Certainly the act of specifically not eating or eating only vegetables when you are hungry for more is something of a disorder, whether it's officially anorexia or not.
Anyone have any other ideas about what might cause the disparity between our attitudes toward weight and that of Japanese women?