In this article, I argue that various epistemic challenges associated with eating disorders (EDs) can negatively affect the care of already marginalized patient groups with various EDs. I will first outline deficiencies in our understanding of EDs—in research, healthcare settings, and beyond. I will then illustrate with examples cases where discriminatory misconceptions about what EDs are, the presentation and treatment of EDs, and who gets EDs, instantiate obstacles for the treatment of various ED patient groups.