Clearly they’re not healthier (well, I guess it depends on lifestyle).
I always think people, particularly women, who are bigger, tend to look more youthful when older.
Slimmer or skinnier women (and men) tend to get scraggy necks and skin.
And their faces look older.
I guess an example is Dawn French, when she lost all that weight, she obviously looked fitter, but much older and more haggard looking.
Hoping this doesn’t offend anyone!