Eating disorder Eating disorder An eating disorder is a mental disorder defined by abnormal eating habits that negatively affect a person's physical or mental health. They include binge eating disorder where people eat a large amount in a short period of time, anorexia nervosa where people eat very little and thus have a low body weight, bulimia nervosa where people eat a lot and then try to rid themselves of the food, pica where people eat non-food items, rumination disorder where people regurgitate food, avoidant/restrictive food intake disorder where people have a lack of interest in food, and a group of other
Other specified feeding or eating disorder in the literature, as it was perceived to be uncommon compared to the other defined eating disorders. In "DSM-III-R", published in 1987, the Atypical Eating Disorder category became known as Eating Disorder Not Otherwise Specified (EDNOS). "DSM-III-R" included examples of individuals who would meet criteria for EDNOS, in part to acknowledge the increasingly recognized heterogeneity of individuals within the diagnostic category. In 1994, "DSM-IV" was published and expanded EDNOS to include six clinical presentations. These presentations included individuals who: A disadvantage of "DSM-IV"'s broad EDNOS category was that people with very different symptoms were still classified as having the same