This isn't about what I'd expect a doctor to do. Of course I'd expect a doctor to say "lose weight." What I am taking issue with is the way commenters here are

This isn't about what I'd expect a doctor to do. Of course I'd expect a doctor to say "lose weight." What I am taking issue with is the way commenters here are treating that imperative, "lose weight," as though it is some very simple thing for severely obese people. It isn't.