["Sociology of Health & Illness, Volume 43, Issue 2, Page 459-475, February 2021. ", "\nAbstract\nAlthough patients who undergo weight‐loss surgery (WLS/bariatric surgery) must follow severe eating restrictions in a manner similar to that of dieting, professionals strive to demarcate distinctions between the approaches and methods of WLS and diet. Drawing from ethnographic research, this study focuses on the content and interpretative dimensions of professionals' boundary work as well as its meaning and implications for patients. The post‐surgical body is revealed as a site of dispute. Professionals portray the logic of diet as one that assumes individuals ought to discipline themselves – and not ‘give in’ to pleasure – in order to achieve an ideal body. In contrast, WLS is depicted as a more advanced and balanced method that negotiates pleasure and control. Professionals construct boundaries by shifting the causes for obesity from the individual to the context, by expanding the meaning of success and by portraying food as healing. These findings join recent critical literature that shows that the lived experiences of care practices contest the prevailing framing of obesity care as solely about exerting disciplinary power and control. WLS professionals negotiate fat stigma and question dominant discourses regarding body size, thin ideals and responsibility.\n"]