Some diets are just that-a brief episode of calorie or fat counting; they are merely attempts to lose weight for the sake of a smaller skirt size. Other diets, however, are a prelude to the kind of problem with food that has nothing to do with shape or size but rather emotional issues which, left undetected, could bring a child to the brink of a serious eating disorder. The line between one and the other is sometimes hard to determine and many girls...