People typically suffering from which eating disorder appear to be of normal weight but may cause significant internal damage?

Bulimia nervosa is characterized by episodes of binge eating followed by compensatory behaviors, such as purging, to prevent weight gain. Individuals with bulimia may appear to be of normal weight, which can make the disorder less visible compared to others, such as anorexia nervosa, where individuals are typically underweight. Despite maintaining a normal weight, the internal damage associated with bulimia can be significant; it can lead to electrolyte imbalances, gastrointestinal issues, dental problems from frequent vomiting, and potentially severe health consequences. The focus on maintaining a normal weight often masks the underlying health risks and psychological aspects of the disorder.

Other options mention disorders where weight changes are more pronounced, or significance lies in different behavioral patterns rather than compensatory actions post-binge eating. Thus, their characteristics differ from those of bulimia nervosa.