Adequacy of maternal pyridoxine supplementation during pregnancy in relation to the vitamin B6 status and growth of neonates at birth

To evaluate the adequacy of maternal pyridoxine supple-mentation during pregnancy for both maternal and neonatal status at birth, vitamin B6 status, assessed by plasma pyridoxal phosphate (PLP), pyridoxal (PL) and total aldehyde vitamer (PLP+PL) concentrations, and the growth of neonates, including weight, length, head and chest circumferences, were examined for 209 neonates whose mothers were supplemented with 0, 1, 2 or 3mg pyridoxine⋅HCl (PN⋅HCl)/d during pregnancy. Maternal PN⋅HCl supplementations were positively correlat-ed to both maternal (r=0.62) and cord (r=0.78) plasma PLP concentrations (p