The second major change involves the DSM-IV category “feeding disorder of infancy or early childhood.” This disorder has been renamed “avoidant/restrictive food intake disorder” and the criteria have been expanded. There are two major reasons for these changes. First, the DSM-IV category was rarely used, and limited information is available on the characteristics, course, and outcome of children with the DSM-IV disorder. Second, a number of individuals, primarily but not exclusively children and adolescents, substantially restrict their food intake and experience significant associated physiological or psychosocial problems, but they do not meet criteria for any DSM-IV feeding or eating disorder (2). For example, after an unpleasant episode of gastrointestinal illness accompanied by vomiting, some youngsters may avoid eating solid food and develop significant nutritional problems. Similarly, although idiosyncratic preferences for foods of a certain taste or consistency are very common during childhood development and are typically self-limited and require no intervention, in rare cases the preferences are so extreme and persistent as to lead to clinically significant problems. Avoidant/restrictive food intake disorder is a broad category intended to capture this latter range of presentations.