anorexia manga

i've read this manga years ago and the story deeply engraved in me.

it is about a fat girl trying to lose some weight, at first she refused to eat anything and that called anorexia. Someday she watched a model interviewed on tv and the model said she always eat everything she want and vomit everything afterwards. The girl followed the model and soon she is in bullimia category.

I think at the end of the story a restaurant owner's son help her by bringing her lunchbox to the hospital everyday.

that manga is pretty old and the first time i learned about anorexia and bullimia was from that manga.

i really want to read that manga again but can't remember the title. maybe any of you have read this manga and can tell me the title.