20 Oct 2016 Blackmores Institute Prenatal vitamin D may protect against ADHD in toddlers 20 Oct 2016 Share Share on LinkedIn Share on Facebook Share on Twitter Share on Google+ Share on Pinterest News Researchers have found an inverse association between umbilical cord vitamin D levels, and attention deficit hyperactivity disorder symptoms in toddlers, suggesting a protective effect of prenatal vitamin D. × To continue reading this article, please Log In or Sign Up for access.