belle has bulimia and amanda has anorexia. outcome studies suggest that

Outcome studies suggest that "Belle would probably have a more positive prognosis than Amanda".

Bulimia refers to a dietary issue described by pigging out took after by purging. Binge eating alludes to eating a lot of sustenance in a short measure of time. Purging alludes to the endeavors to dispose of the nourishment devoured. This might be finished by heaving or taking diuretics. 
Anorexia refers to a dietary problem described by low weight, dread of putting on weight, and a powerful urge to be thin, bringing about sustenance restriction. Many individuals with anorexia consider themselves to be overweight despite the fact that they are in truth underweight. If asked they normally deny they have an issue with low weight.