Investigating the causal effect of maternal vitamin B12 and folate levels on offspring birthweight

ConclusionsOur results are consistent with evidence from randomized controlled trials that higher maternal folate levels increase offspring birthweight. We did not find evidence for a causal effect of B12 levels on offspring birthweight, suggesting previous observational studies may have been confounded.
Source: International Journal of Epidemiology - Category: Epidemiology Source Type: research