Regulation has not always resulted in better health outcomes than if the product had otherwise been regulated either. We don't need to set up this false dichotomy between markets and regulation and then bash markets over the head with the negatives aspects while ignoring negatives outcomes as a result of government action which you seem to be insinuating.

So to remain unconvinced doesn't make sense here. Though I guess I can just say I'm unconvinced of government regulations because why not? Same line of reasoning that you're using here.