There are a lot of tools to address the problem that some people have bad intentions.
We publish common sense laws, and we have police officers and prosecutors, and then we have a court system to hold people accountable for breaking the law. That's one pretty major method that has little to do with the need for an institution like FDA.
I don't know if a system that relied entirely on tort and negligence and contract law to protect people from being sold snake oil would function better or worse than FDA, but I do know something like FDA (where a bunch of smart people advise very specifically on which drugs are ok to take and which are not) isn't the only option we have.
We publish common sense laws, and we have police officers and prosecutors, and then we have a court system to hold people accountable for breaking the law. That's one pretty major method that has little to do with the need for an institution like FDA.
I don't know if a system that relied entirely on tort and negligence and contract law to protect people from being sold snake oil would function better or worse than FDA, but I do know something like FDA (where a bunch of smart people advise very specifically on which drugs are ok to take and which are not) isn't the only option we have.