Taking multivitamins in early pregnancy may reduce risk of child autism, study suggests

Experts caution that although they had found a possible association, more research is needed

Jane Kirby
Thursday 05 October 2017 00:00
Vitamin C tablets and Omega 3 fish oil liquid capsules
Vitamin C tablets and Omega 3 fish oil liquid capsules

Taking multivitamins in early pregnancy may reduce the risk of children developing autism, research suggests.

Experts found that children whose mothers had taken the vitamins were around half as likely to develop autism as those whose mothers took none.

But the team cautioned that although they had found a possible association, more research was needed.

Writing in the British Medical Journal (BMJ), experts from universities and hospitals in Philadelphia, Stockholm and Bristol, examined data for 273,107 mothers and their children living in Stockholm.

All the children were aged four to 15 by 31 December 2011, and were born between 1996 and 2007.

The woman's use of folic acid, iron, and multivitamin supplements had been recorded at their first antenatal visit.

Cases of autism spectrum disorder were also identified in national registers.

After adjusting for factors that might influence the findings, experts found that women who took multivitamins, with or without additional iron and/or folic acid, had a lower chance of their child developing autism with intellectual disability compared to mothers who took none.

When iron and folic acid were looked at alone, there was no consistent evidence that their use was associated with a reduced risk of autism.

NHS guidelines say a healthy diet should give women most of the vitamins and minerals they need in pregnancy.

But women should also take 400 micrograms (mcg) of folic acid every day for the first 12 weeks of pregnancy and 10 micrograms (mcg) of vitamin D a day, they say.

More than one in 100 people are on the autism spectrum, including an estimated 700,000 people in the UK.

There are many different characteristics that make up autism, but people may be under or oversensitive to sounds, touch, tastes, smells, light and colours.

They may also find social situations challenging and experience "meltdowns" when anxious.

Press Association

Register for free to continue reading

Registration is a free and easy way to support our truly independent journalism

By registering, you will also enjoy limited access to Premium articles, exclusive newsletters, commenting, and virtual events with our leading journalists

Already have an account? sign in

By clicking ‘Register’ you confirm that your data has been entered correctly and you have read and agree to our Terms of use, Cookie policy and Privacy notice.

This site is protected by reCAPTCHA and the Google Privacy policy and Terms of service apply.

Join our new commenting forum

Join thought-provoking conversations, follow other Independent readers and see their replies


Thank you for registering

Please refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in