“The study found that pregnant women with low vitamin D levels at 20 weeks’ gestation were more likely to have a child with autistic traits by the age of six.
“This study provides further evidence that low vitamin D is associated with neurodevelopmental disorders,” Professor McGrath said.”
A A E Vinkhuyzen et al. Gestational vitamin D deficiency and autism-related traits: the Generation R Study, Molecular Psychiatry(2016). DOI: 10.1038/mp.2016.213