Fluid restriction in eating disorders is a serious issue that has been rarely discussed, and never from a psychodynamic perspective, but which can rapidly become the prime focus of eating disorder treatment because of its serious medical complications. Patients struggle to hydrate appropriately even after food intake has improved. This article examines psychodynamic implications of this behavior, both as it relates to and differs from existing psychodynamic approaches to understanding other eating disorder behaviors. Specifically, I will focus both on the unique transference- countertransference pattern that arises in patients who restrict fluid and on views of the body held by these patients.