@artemis there's also the poverty aspect. Food deserts, the corporate capture of food production and distribution and other issues of accessibility map heavily onto "obesity" and poverty. But also like, it's probably more like poor people with less healthy food available and less access to healthcare are sicker on average, and thus it's more of an indication of ablist, white supremacist, and class stratification. If weight is indeed correlated with health (I think that's a fuzzy correlation at best), it's absurd to look at it without addressing the culture in which these things exist. (Obviously preaching to the choir about that)
Tldr yes, prejudice and shitty medical care for fat people is a likely determinant of health, and that's a reflection of intentional stratification of society on basis of ability, race, gender etc.
Doctors don't like listening to black people or women very much either. Insert ramble about intersectionality