• Recurrent episodes of binge eating, characterized by eating an excessive amount of food within a discrete period of time and by a sense of lack of control over eating during the episode
• Recurrent inappropriate compensatory behavior in order to prevent weight gain, such as Self-induced vomiting or misuse of laxatives, diuretics, enemas, or other medications (purging); fasting; or excessive exercise
• The binge eating and inappropriate compensatory behaviors both occur, on average, at least twice a week for 3 months
• Self-evaluation is unduly influenced by body shape and weight

Because purging or other compensatory behavior follows the binge-eating episodes, people with bulimia usually weigh within the normal range for their age and height. However, like individuals with anorexia, they may fear gaining weight, desire to lose weight, and feel intensely dissatisfied with their bodies. People with bulimia often perform the behaviors in secrecy, feeling disgusted and ashamed when they binge, yet relieved once they purge.

Binge-Eating Disorder

Community surveys have estimated that between 2 percent and 5 percent of Americans experience binge-eating disorder in a 6-month period. Symptoms of binge-eating disorder include: Recurrent episodes of binge eating, characterized by eating an excessive amount of food within a discrete period of time and by a sense of lack of control over eating during the episode

Treatment Strategies

Eating disorders can be treated and a healthy weight restored. The sooner these disorders are diagnosed and treated, the better the outcomes are likely to be. Because of their complexity, eating disorders require a comprehensive treatment plan involving medical care and monitoring, psychosocial interventions, nutritional counseling and, when appropriate, medication management. At the time of diagnosis, the clinician must determine whether the person is in immediate danger and requires hospitalization.

The primary goal of treatment for bulimia is to reduce or eliminate binge eating and purging behavior. To this end, nutritional rehabilitation, psychosocial intervention, and medication management strategies are often employed. Establishment of a pattern of regular, non-binge meals, improvement of attitudes related to the eating disorder, encouragement of healthy but not excessive exercise, and resolution of co-occurring conditions such as mood or anxiety disorders are among the specific aims of these strategies. Individual psychotherapy (especially cognitive-behavioral or interpersonal psychotherapy), group psychotherapy that uses a cognitive-behavioral approach, and family or marital therapy have been reported to be effective.

Psychotropic medications, primarily antidepressants such as the selective serotonin reuptake inhibitors (SSRIs), have been found helpful for people with bulimia, particularly those with significant symptoms of depression or anxiety, or those who have not responded adequately to psychosocial treatment alone. These medications also may help prevent relapse. The treatment goals and strategies for binge-eating disorder are similar to those for bulimia, and studies are currently evaluating the effectiveness of various interventions.

This publication was written by Melissa Spearing, Office of Communications and Public Liaison, National Institute of Mental Health (NIMH). Expert assistance was provided by NIMH Director Steven E. Hyman, M.D., and NIMH staff members Bruce N. Cuthbert, Ph.D., Regina Dolan-Sewell, Ph.D., Benedetto Vitiello, Ph.D., Clarissa K. Wittenberg, and Constance Burr. Editorial assistance was provided by Margaret Strock and Lisa D. Alberts, also NIMH staff members.
All material in this publication is in the public domain and may be copied or reproduced without permission of the Institute. Citation of the source is appreciated.

NIH Publication No. 01-4901
Printed 2001

Updated: August 06, 2002