Dr. Marsha Marcus, Professor Emerita at The University of Pittsburgh School of Medicine, has devoted a significant part of her career to the study of binge eating and the development of treatments for people with binge eating disorder. She started out with a focus on obesity treatment. During the course of her work, she noticed that a significant percentage of people seeking weight-loss treatment also described patterns of binge eating that contributed significantly to their health concerns and their distress. This observation catalyzed decades of clinical practice and research straddling the worlds of obesity and eating disorders. In this episode, Dr. Marcus describes her pioneering work and raises serious concerns about the ways in which science and advocacy are often conflated in the “Health at Any Size Movement” – to the detriment of the people who scientists, clinicians and advocates all want to serve.