The science on paracetamol, folinic acid and autism: what matters most

This week, certain public figures have been pushing dangerous and blatantly unsubstantiated notions that there’s a link between paracetamol use in pregnancy and autism. There is also speculation that folinic acid (leucovorin) could be a potential “treatment” for autism.

As Chief Executive of BeyondAutism, I want to be clear: autism is not something to be cured. It is part of human diversity. It is also our collective responsibility as professionals, families, and the wider society, to challenge misinformation wherever it arises.

What the science actually says:

Paracetamol and autism

• The largest and most rigorous studies show no causal link. A Swedish registry study following more than 2.4 million children found no increased risk of autism in siblings whose mothers used paracetamol during pregnancy.
• Some smaller studies and reviews suggest associations, which are likely explained by genetics.
• Current guidance is consistent: paracetamol remains the safest pain relief option during pregnancy when used appropriately.

Folinic acid (leucovorin)

• Some research suggests that autistic children with folate-receptor autoantibodies may benefit from folinic acid supplementation. Small randomised trials report improvements in communication and social interaction.
• Trials have been small, and it is not yet clear whether benefits extend beyond subgroups with specific metabolic differences.
• No major health authority, including the World Health Organization, currently recommends folinic acid for autistic individuals.

Why this matters for families

Announcements that tie everyday medicines to autism, or that hint at “cures”, do more than grab headlines. They create fear and stigma for families who deserve clarity and honesty. When autism is framed through a narrow medical model, autistic people are reduced to a set of problems to be solved, rather than recognised as individuals with voices, strengths, and aspirations. Families tell us what makes the difference is not speculation about causes, it is timely support, reliable information and inclusive education.

The real difference comes from children being welcomed into education, parents having trusted places to turn for advice, and professionals having the right tools to support inclusion. Families tell us time and again that access to timely support and quality education changes their lives.

Shifting the Conversation

At BeyondAutism, we need the conversation about autism to shift. Not back to what might “cause” it, and not forward to unproven “treatments”. Instead, towards what truly matters: access to education, dignity, and opportunity.

This is where our energy belongs. And it is where we see change happening every day – pupils staying in school, families growing in confidence with support, and autistic children and young adults leading lives of choice and independence.

Looking ahead

We will not change our commitment to ensuring every autistic learner has the support they need to thrive.

Autism is not caused by paracetamol. Autism is not something to be “treated away” with supplements. It is part of the rich diversity of human experience – and that is the conversation worth having.

Tracie Coultas-Pitman

CEO, BeyondAutism