diagnosed concurrently. Differential diagnosis between avoidant/restrictive food intake
disorder and anorexia nervosa may be difficult,  especially in late childhood and early ad-
olescence, because these disorders may share a number of common symptoms (e.g., food
avoidance, low weight). Differential diagnosis is also potentially difficult in individuals
with anorex ia nervosa who deny any fear of fatness but nonetheless engage in persistent
behaviors that prevent weight gain and who do not recognize the medical seriousness of
their low weight—a presentation sometimes termed “non-fat phobic anorexia nervosa.”
Full consideration of symptoms, course, and fa mily history is advised, and diagnosis may