Higher vitamin B12 levels in both parents associated with a lower risk of birth defects
A prospective cohort study quantifying the associations of parental vitamin B12 and red blood cell (RBC) folate with birth defects found that higher parental vitamin B12 before conception and higher maternal RBC folate concentrations after conception were associated with lower birth defect risk.
We haven't written up this one. Medical Xpress has the full story — the link below goes straight to it.