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Vitamin B6 intake of pregnant women. Squares indicate the dietary folate intake; dots indicate the intake via supplements; triangles indicate the total intake. The dotted vertical lines represent the estimated average requirement (EAR: 1.3 mg/d) and recommended daily allowance (RDA: 1.8 mg/d). T0 = preconception; T1 = first trimester; T2 = second trimester. a = mean with standard error of the mean (SEM); b = median with 90% range. GLIMP2 study [50]. Voortman et al. [57].
