What's the end result of that? People are fatter and less healthy than ever.
It's not clear that banning it outright would be a solution but the relative health of countries that disincentive unhealthy ingredients vs. those that subsidize it like the USA tends to make me think bans are a potential solution.
Edit:
I think we'd probably be better off subsidizing/ giving grants to some number of people to do community gardens instead of make work jobs. They'd get exercise and generate healthy food, at least enough to replace some fraction of their diet. I guess the equivalent of that would be subsidizing healthy IRL social interaction like dances, sports, and board games.