Which statement best characterizes Bulimia Nervosa?

• A. Recurrent binge eating with a sense of loss of control and recurrent compensatory behaviors to prevent weight gain, occurring at least once per week for three months, with self-evaluation unduly influenced by body shape/weight.
• B. Chronic under-eating with significant weight loss.
• C. Persistent preoccupation with food and dieting without binge episodes.
• D. Repeated overnight fasting with no compensatory behaviors.

Answer: (A)

Bulimia nervosa is defined by a pattern of binge eating episodes accompanied by compensatory behaviors to prevent weight gain. The binge episodes involve eating a large amount of food in a short period with a sense of loss of control. To counteract the effect of those binge episodes, individuals engage in behaviors such as self-induced vomiting, misuse of laxatives or diuretics, fasting, or excessive exercise. For a diagnosis, these features must occur at least once a week for three months, and self-evaluation is unduly influenced by body shape and weight. This combination—recurrent binge eating with loss of control, compensatory behaviors to prevent weight gain, and weight/shape-driven self-evaluation—best fits bulimia nervosa.

The other statements point to different patterns: chronic under-eating with significant weight loss aligns with anorexia nervosa; persistent preoccupation with food and dieting without binge episodes suggests a restrictive or obsessive pattern without the binge-compensatory cycle; repeated overnight fasting without compensatory behaviors does not capture the binge and compensatory aspects of bulimia.