Schizophrenia.com

Neonatal Vitamin D Status and Risk of Schizophrenia

Conclusions Both low and high concentrations of neonatal vitamin D are associated with increased risk of schizophrenia, and it is feasible that this exposure could contribute to a sizeable proportion of cases in Denmark. In light of the substantial public health implications of this finding, there is an urgent need to further explore the effect of vitamin D status on brain development and later mental health.

Didn’t realise high concentrations were a risk. I knew about low concentrations.