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Debunking Trump's autism claims

Posted by: The Conversation Global Highlights

Date: Friday, 26 September 2025

Donald Trump alarmed health professionals the world over this week when he claimed that taking paracetamol, or acetaminophen as it is known in the U.S., during pregnancy was linked to a child’s risk of autism. Experts immediately began debunking the president’s claims — with many citing the findings of a landmark 2024 paper from researchers at the Karolinska Institutet in Sweden.

The authors of that paper – Renee Gardner, Brian Lee and Viktor H. Ahlqvist – wrote for The Conversation this week, explaining exactly why their research has been so integral in discrediting Trump’s claims.

Their study looked at over 2.5 million children born in Sweden between 1995 and 2019, tracking them for up to 26 years. They were also able to make direct comparisons between siblings — where one sibling had been exposed to paracetamol in the womb and one had not.

This powerful sibling design meant that their study — which is the largest conducted on the subject to date — was able to show that there’s no evidence that paracetamol use during pregnancy is linked with a child’s risk of autism.

“The idea that acetaminophen use during pregnancy causes autism simply isn’t supported by the best available science,” the authors conclude, “The greater danger is that alarmist messaging will discourage pregnant women from treating pain or fever – putting both themselves and their babies at risk.”

Elsewhere this week we have been keeping an eye on events at the United Nations and pondering why the Jolly Roger of the Straw Hat Pirates has become a potent global emblem of youth protest.

Heather Kroeker

Commissioning Editor, Health + Medicine

Andrey_Popov/Shutterstock

Paracetamol use during pregnancy not linked to autism, our study of 2.5 million children shows

Renee Gardner, Karolinska Institutet; Brian Lee, Drexel University; Viktor H. Ahlqvist, Karolinska Institutet

Our research provides strong evidence against the concerning claims made recently by US president Donald Trump.

The Ganges River is drying faster than ever – here’s what it means for the region and the world

Mehebub Sahana, University of Manchester

Climate change and overuse are creating a crisis for south Asia’s most important river.

Geography and politics stand in the way of an independent Palestinian state

Nils Mallock, London School of Economics and Political Science; King's College London

Palestinians lack a coherent territory and a popular leadership.

From anime to activism: How the ‘One Piece’ pirate flag became the global emblem of Gen Z resistance

Nuurrianti Jalli, Oklahoma State University

From Nepal and Jakarta to Paris and New York, the grinning skeletal image of the Jolly Roger of the Straw Hat Pirates has been a transnational emblem of rebellion.

 
 
 
 

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