alt Hacker NewsThis was studied because it sounds reasonable on paper and several small studies showed a small link.
However, they did a very large cohort study with hundreds of thousands of subjects. The link completely disappears when genetics are accounted for via sibling pairs.[0]
It took almost two whole minutes of Googling for me to disprove this nonsense. Which shows that RFK did less than 2 minutes worth of research before panicking the world.
[0] https://jamanetwork.com/journals/jama/fullarticle/2817406
I will say that this study presented a major challenge to the tylenol hypothesis. To my mind, there is still a remote possibility that the tylenol hypotehsis might just be relevant to a smaller subset of autistic individuals...but I am coming from the general outlook of believing autism needs to be subtyped when looking at etiology.