Treatment for any eating disorder must address the symptoms. medical consequences, as well as psychological, biological, interpersonal and cultural forces that contribute to or maintain the eating disorder. What purpose the eating Disorder serves in someone's life?  A multi-disciplinary team approach with the therapist, registered dietician, psychiatrist and PCP is essential and is coordinated by the therapist. Many people with eating disorders respond to outpatient therapy, including individual, group or family therapy.