For decades, the discussion around autism has been a hotbed of misinformation, misinterpretation, and bad science, ranging from the long-discredited link between the neurodevelopmental condition and vaccines, to newer claims that going gluten-free and avoiding ultra-processed foods can reverse autistic traits.

On Monday night, this specter arose again in the Oval Office, as President Donald Trump announced his administration’s new push to study the causes of autism with claims that the common painkiller Tylenol, otherwise known as acetaminophen, can cause the condition. The FDA subsequently announced that the drug would be slapped with a warning label citing a “possible association.”

David Amaral, professor and director of research at the UC Davis MIND Institute, was among those watchin

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