Adolescents frequently engage in disordered eating behavior at an alarming rate, with many developing partial or full-blown eating disorders. The spectrum of eating disorders includes anorexia nervosa, bulimia nervosa, eating disorders not otherwise specified, and binge-eating disorder. In this article we provide the practitioner with an update on the current state-of-the-art regarding etiology and treatment of eating disorders and address certain clinical controversies that practitioners face on a daily basis.