["European Eating Disorders Review, Volume 34, Issue 3, Page 599-611, May 2026. ", "\nABSTRACT\n\nObjective\nDifficulties with emotion regulation are implicated in eating disorder (ED) psychopathology. Improvement in emotion regulation early in treatment predicts positive ED outcomes. However, little is known about whether changes in emotion regulation abilities relate to ED symptoms in treatment‐seeking samples of men/boys. Therefore, this study investigated relationships among these variables in men/boys receiving ED treatment to test if change in emotion regulation difficulties influence ED symptoms at discharge.\n\n\nMethods\nParticipants were 110 men/boys in emotion‐focused ED treatment. Analyses examined relationships between changes in difficulties with emotion regulation from admit to 1‐month post‐admission and ED symptoms at discharge, controlling for admit ED symptoms.\n\n\nResults\nED symptoms and difficulties with emotion regulation significantly improved from admit to discharge and were positively associated within the same timepoint. Furthermore, difficulties with emotion regulation at admit were significantly positively associated with ED symptoms at discharge. However, early change in difficulties with emotion regulation was not associated with discharge ED symptom severity, accounting for admit ED symptoms.\n\n\nDiscussion\nDespite reductions in overall ED symptom severity, early improvements in men/boys' emotion regulation abilities did not influence ED symptom severity post‐treatment. Men/boys may benefit from emotion‐focused ED treatment regardless of initial improvements in emotion regulation skills.\n\n"]