Binge eating is common in middle childhood (6-12 years) and often presents in concert with disordered eating attitudes, emotional distress, overweight and adiposity. Binge eating is also predictive of excessive weight gain and is associated with energy intake. However, few children meet DSM-IV-TR criteria for binge eating disorder, thereby making treatment recommendations a challenge. We propose criteria for a new diagnosis, Loss of Control Eating Disorder in Children age 12 years and younger, for further study. The criteria put forward are a revision of Marcus and Kalarchian's [Marcus, M.D., & Kalarchian, M.A. (2003). Binge eating in children and adolescents. International Journal of Eating Disorders, 34 Suppl, S47-S57.] provisional binge eating disorder research criteria for children 14 years and younger, and are based upon the evolving literature in children with binge and loss of control eating episodes. A rationale for the new criteria set is provided, and future research directions are proposed.