Circulating Unmetabolized Folic Acid: Relationship to Folate Status and Effect of Supplementation
Figure 8
Plasma concentrations of unmetabolized folic acid among women who supplemented with 1.1 mg of folic acid (grey boxes) compared to 5 mg of folic acid (cross-hatched boxes). When analyzed by group, the change in plasma folic acid concentrations was not significant in either the 1.1 mg () or 5 mg () group.