Eating Disorders - Introduction

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Since binge eating disorder is generally associated with weight gain, it will not be further discussed in this report. [For more information on bingeing without purging, see In-Depth Report #53: Obesity.]

Eating Disorders Not Otherwise Specified

A fourth category called eating disorders not otherwise specified (NOS) has been established to define eating disorders not specifically defined as anorexia or bulimia. This category includes:

• Infrequent binge-purge episodes (occurring less than twice a week or having such behavior for less than months)
• Repeated chewing and spitting without swallowing large amounts of food
• Normal weight and anorexic behavior

Such patients tend to be older at diagnosis. Although less serious than other eating disorders, these patients still face similar health problems, including a higher risk for fractures and other conditions.

Review Date: 12/13/2006
Reviewed By: Harvey Simon, MD, Associate Professor of Medicine, Harvard Medical School; Physician, Massachusetts General Hospital.

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