Earlier quoted context omitted.
Down's Syndrome is also unhealthy. Should we stigmatize that also? The main issue is control. Many assume that weight is simple and under people's full control. Realistically, though, there are all kinds of reasons why weight gain happens and scientific measurement shows that wild animals are getting bigger too which suggests that pervasive presence of endocrine disrupting agents in the environment may be involved. I…
Weight is not uncontrollable. It's not easy to control, but neither is any other addiction, and they're certainly stigmatized.
Just to point out one potentially complicating factor Dr. Robert Lustig's work appears to show that our diets increasingly include processed foods which are strongly associated with health problems including weight gain and metabolic disease. So if you can completely avoid institutional food such as served at company canteens and figure out and stick to a good diet then maybe. Even then it seems like the stigma is just sloppiness that results in perfectly respectable contributions to society not being recognized.
Early on I made a habit out of becoming friends with fat people I met because their exposure to social stigma tended to make them strong as individuals.
If anything it seems like the person who is addicted to something that should be stigmatized is you.