This video answers the question: What are the differences between Anorexia, Bulimia, Atypical Anorexia, Purging Disorder, and Binge Eating Disorder? How do the eating disorders rank in terms of seriousness? The Feeding and Eating Disorders section of the Diagnostic and Statistical Manual (DSM) contains a number of potentially confusing diagnostic descriptions between disorders that have serious mental and physical consequences.
Forney, K. J., Brown, T. A., Holland, C. L. A., Kennedy, G. A., & Keel, P. K. (2017). Defining “significant weight loss” in atypical anorexia nervosa. International Journal of Eating Disorders, 50(8), 952–962.
Smith, K. E., Crowther, J. H., & Lavender, J. M. (2017). A review of purging disorder through meta-analysis. Journal of Abnormal Psychology, 126(5), 565–592.