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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.
Show all 40 1 /40Health news in pictures Health news in pictures Coronavirus outbreak The coronavirus Covid-19 has hit the UK leading to the deaths of two people so far and prompting warnings from the Department of Health
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Health news in pictures Thousands of emergency patients told to take taxi to hospital Thousands of 999 patients in England are being told to get a taxi to hospital, figures have showed. The number of patients outside London who were refused an ambulance rose by 83 per cent in the past year as demand for services grows
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Health news in pictures Vape related deaths spike A vaping-related lung disease has claimed the lives of 11 people in the US in recent weeks. The US Centre for Disease Control and Prevention has more than 100 officials investigating the cause of the mystery illness, and has warned citizens against smoking e-cigarette products until more is known, particularly if modified or bought “off the street”
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Health news in pictures Baldness cure looks to be a step closer Researchers in the US claim to have overcome one of the major hurdles to cultivating human follicles from stem cells. The new system allows cells to grow in a structured tuft and emerge from the skin
Sanford Burnham Preybs
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Health news in pictures Cancer breath test to be trialled in Britain The breath biopsy device is designed to detect cancer hallmarks in molecules exhaled by patients
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Health news in pictures Average 10 year old has consumed the recommended amount of sugar for an adult By their 10th birthdy, children have on average already eaten more sugar than the recommended amount for an 18 year old. The average 10 year old consumes the equivalent to 13 sugar cubes a day, 8 more than is recommended
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Health news in pictures Child health experts advise switching off screens an hour before bed While there is not enough evidence of harm to recommend UK-wide limits on screen use, the Royal College of Paediatrics and Child Health have advised that children should avoid screens for an hour before bed time to avoid disrupting their sleep
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Health news in pictures Daily aspirin is unnecessary for older people in good health, study finds A study published in the New England Journal of Medicine has found that many elderly people are taking daily aspirin to little or no avail
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Health news in pictures Vaping could lead to cancer, US study finds A study by the University of Minnesota's Masonic Cancer Centre has found that the carcinogenic chemicals formaldehyde, acrolein, and methylglyoxal are present in the saliva of E-cigarette users
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Health news in pictures More children are obese and diabetic There has been a 41% increase in children with type 2 diabetes since 2014, the National Paediatric Diabetes Audit has found. Obesity is a leading cause
Reuters
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Health news in pictures Gay, lesbian and bisexual adults at higher risk of heart disease, study claims Researchers at the Baptist Health South Florida Clinic in Miami focused on seven areas of controllable heart health and found these minority groups were particularly likely to be smokers and to have poorly controlled blood sugar
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Health news in pictures Breakfast cereals targeted at children contain 'steadily high' sugar levels since 1992 despite producer claims A major pressure group has issued a fresh warning about perilously high amounts of sugar in breakfast cereals, specifically those designed for children, and has said that levels have barely been cut at all in the last two and a half decades
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Health news in pictures Potholes are making us fat, NHS watchdog warns New guidance by the National Institute for Health and Care Excellence (NICE), the body which determines what treatment the NHS should fund, said lax road repairs and car-dominated streets were contributing to the obesity epidemic by preventing members of the public from keeping active
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Health news in pictures New menopause drugs offer women relief from 'debilitating' hot flushes A new class of treatments for women going through the menopause is able to reduce numbers of debilitating hot flushes by as much as three quarters in a matter of days, a trial has found. The drug used in the trial belongs to a group known as NKB antagonists (blockers), which were developed as a treatment for schizophrenia but have been “sitting on a shelf unused”, according to Professor Waljit Dhillo, a professor of endocrinology and metabolism
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Health news in pictures Doctors should prescribe more antidepressants for people with mental health problems, study finds Research from Oxford University found that more than one million extra people suffering from mental health problems would benefit from being prescribed drugs and criticised “ideological” reasons doctors use to avoid doing so.
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Health news in pictures Student dies of flu after NHS advice to stay at home and avoid A&E The family of a teenager who died from flu has urged people not to delay going to A&E if they are worried about their symptoms. Melissa Whiteley, an 18-year-old engineering student from Hanford in Stoke-on-Trent, fell ill at Christmas and died in hospital a month later.
Just Giving
Health news in pictures Government to review thousands of harmful vaginal mesh implants The Government has pledged to review tens of thousands of cases where women have been given harmful vaginal mesh implants.
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Health news in pictures Jeremy Hunt announces 'zero suicides ambition' for the NHS The NHS will be asked to go further to prevent the deaths of patients in its care as part of a “zero suicide ambition” being launched today
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Health news in pictures Human trials start with cancer treatment that primes immune system to kill off tumours Human trials have begun with a new cancer therapy that can prime the immune system to eradicate tumours. The treatment, that works similarly to a vaccine, is a combination of two existing drugs, of which tiny amounts are injected into the solid bulk of a tumour.
Nephron
Health news in pictures Babies' health suffers from being born near fracking sites, finds major study Mothers living within a kilometre of a fracking site were 25 per cent more likely to have a child born at low birth weight, which increase their chances of asthma, ADHD and other issues
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Health news in pictures NHS reviewing thousands of cervical cancer smear tests after women wrongly given all-clear Thousands of cervical cancer screening results are under review after failings at a laboratory meant some women were incorrectly given the all-clear. A number of women have already been told to contact their doctors following the identification of “procedural issues” in the service provided by Pathology First Laboratory.
Rex
Health news in pictures Potential key to halting breast cancer's spread discovered by scientists Most breast cancer patients do not die from their initial tumour, but from secondary malignant growths (metastases), where cancer cells are able to enter the blood and survive to invade new sites. Asparagine, a molecule named after asparagus where it was first identified in high quantities, has now been shown to be an essential ingredient for tumour cells to gain these migratory properties.
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Health news in pictures NHS nursing vacancies at record high with more than 34,000 roles advertised A record number of nursing and midwifery positions are currently being advertised by the NHS, with more than 34,000 positions currently vacant, according to the latest data. Demand for nurses was 19 per cent higher between July and September 2017 than the same period two years ago.
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Health news in pictures Cannabis extract could provide ‘new class of treatment’ for psychosis CBD has a broadly opposite effect to delta-9-tetrahydrocannabinol (THC), the main active component in cannabis and the substance that causes paranoia and anxiety.
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PA
Health news in pictures More than 700 fewer nurses training in England in first year after NHS bursary scrapped The numbers of people accepted to study nursing in England fell 3 per cent in 2017, while the numbers accepted in Wales and Scotland, where the bursaries were kept, increased 8.4 per cent and 8 per cent respectively
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Health news in pictures Landmark study links Tory austerity to 120,000 deaths The paper found that there were 45,000 more deaths in the first four years of Tory-led efficiencies than would have been expected if funding had stayed at pre-election levels. On this trajectory that could rise to nearly 200,000 excess deaths by the end of 2020, even with the extra funding that has been earmarked for public sector services this year.
Reuters
Health news in pictures Long commutes carry health risks Hours of commuting may be mind-numbingly dull, but new research shows that it might also be having an adverse effect on both your health and performance at work. Longer commutes also appear to have a significant impact on mental wellbeing, with those commuting longer 33 per cent more likely to suffer from depression
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Health news in pictures Sleep deprivation When you feel particularly exhausted, it can definitely feel like you are also lacking in brain capacity. Now, a new study has suggested this could be because chronic sleep deprivation can actually cause the brain to eat itself
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Health news in pictures Babies born to fathers aged under 25 have higher risk of autism New research has found that babies born to fathers under the age of 25 or over 51 are at higher risk of developing autism and other social disorders. The study, conducted by the Seaver Autism Center for Research and Treatment at Mount Sinai, found that these children are actually more advanced than their peers as infants, but then fall behind by the time they hit their teenage years
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Health news in pictures Cycling to work ‘could halve risk of cancer and heart disease’ Commuters who swap their car or bus pass for a bike could cut their risk of developing heart disease and cancer by almost half, new research suggests – but campaigners have warned there is still an “urgent need” to improve road conditions for cyclists. Cycling to work is linked to a lower risk of developing cancer by 45 per cent and cardiovascular disease by 46 per cent, according to a study of a quarter of a million people. Walking to work also brought health benefits, the University of Glasgow researchers found, but not to the same degree as cycling.
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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
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