Professor Phillipa Hay is a psychiatrist and the current Chair of Mental Health at Western Sydney University in Australia, the co editor-in-chief of the Journal of Eating Disorders, and past recipient of the Lifetime Leadership Award from the Australia New Zealand Academy for Eating Disorders. Drawing on her experience from decades of teaching, research, and clinical care in eating disorders, Dr. Hay discusses the limitations of weight-based criteria in eating disorder diagnostic criteria, both in terms of limiting treatment access and in restricting our understanding of recovery.