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Eating behavior among women with anorexia nervosa^1,2,3,4

¹ From the Department of Psychology, Rutgers University, Piscataway, NJ (RS and GTW), the Department of Psychiatry, College of Physicians & Surgeons of Columbia University, New York, NY (BTW), and the New York State Psychiatric Institute, New York, NY (BTW and JS)

Background: Disturbed eating and severe caloric restriction are characteristic features of patients with anorexia nervosa (AN). Despite the importance of eating behavior in the presentation of AN, there have been relatively few objective laboratory studies of eating behavior among persons with eating disorders.

Objective: The purpose of the study was to obtain objective measures of eating behavior among patients with AN before and immediately after weight restoration and to compare those measures with measures among control subjects.

Design: Twelve patients hospitalized for AN and 12 control subjects participated in the study. Eleven of the 12 patients were retested at 90% of ideal body weight.

Results: The average meal consumption was 103.97 ± 102.08 g for patients at low weight and 178.03 ± 202.97 g after weight restoration (NS). Control subjects consumed significantly more than did AN patients at both time points, and the average meal size was 489.58 ± 187.64 g. Patients showed significant decreases in psychological and eating-disordered symptoms after weight restoration.

Conclusion: These data suggest that patients with AN show a persistent disturbance in eating behavior, despite the restoration of body weight and significant improvements in eating-disordered and psychological symptoms.

Key Words: Eating behavior • anorexia nervosa • dietary restraint • meal consumption • eating disorders • laboratory test meal

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