EDNOS is the most commonly diagnosed eating disorder in clinical settings. Thus, individuals who have clinically significant eating disorders that do not meet DSM-V criteria for anorexia nervosa or bulimia nervosa are diagnosed with EDNOS.
Individuals with EDNOS usually fall into one of three groups:
- subthreshold symptoms of anorexia nervosa or bulimia nervosa,
- mixed features of both disorders,
- or extremely atypical eating behaviours that are not characterized by either of the other established disorders.
In other words, EDNOS acts as a default category and is defined by what it is not.
Characteristics of EDNOS according to the DSM-IV:
- Meet all criteria for anorexia nervosa except having regular menstrual cycles
- Meet all criteria for anorexia nervosa except their weight falls within the normal range
- Meet all criteria for bulimia nervosa except they engage in binge eating or purging behaviours less than twice per week or for fewer than three months
- Purge after eating small amounts of food while retaining a normal body weight
- Repeatedly chew and spit out large amounts of food without swallowing
- Meet criteria for binge eating disorder
To learn more about eating disorders, you can do a quiz: Eating disorder Quiz.
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