Binge eating disorder is characterized by eating unusually large amounts of food and feeling out of control during binges. Unlike bulimia or anorexia, people with binge eating disorder do not purge their food. It is estimated that about 2% of US adults have binge eating disorder, which affects women slightly more than men. Potential causes include depression, dieting, using food to cope with emotions, and biological factors like brain chemistry. Treatment options include nutritional counseling, cognitive behavioral therapy, and antidepressant or appetite suppressant medication under a doctor's supervision.