It's as proven as a lot of epidemiology. The White House referenced a paper talking about acetaminophen and pregnancy, it was a meta-analysis of epidemiological studies. That's not very rigorous. However, it's the same level of rigor used to demonize red meat consumption.

So you're either in the camp that epidemiology is not serious science, and should not be used for public policy. Which is fine, that's a reasonable place to be

Or you're in the camp that some epidemiology should be used for public policy, which then this acetaminophen link should be taken seriously.

I'm personally not compelled by weak epidemiology, so I don't think any of it should be used for public policy. And especially politicians shouldn't get in the business of pumping epidemiology.

However, this USA today article does not disprove anything. It can't. You can't prove the negative. Is acetaminophen safe at all Dose levels during pregnancy? I don't know, it should be minimized unless it's necessary, but I don't know the dose dependent response. That would require an interventional trial. It would be reasonable to not take any drugs during pregnancy unless they're absolutely medically necessary, and not use simply as a panacea which acetaminophen is often used as

I do find it odd that The article uses the fact that acetaminophen is very popular so it's safe. Otherwise, we'd be seeing a widespread problem, but that's exactly what the acetaminophen research paper was saying.... They're kind of arguing against that premise