Research Article

Circulating Unmetabolized Folic Acid: Relationship to Folate Status and Effect of Supplementation

Figure 9

Plasma concentrations of unmetabolized folic acid among women who supplemented with either 1.1 mg or 5 mg of folic acid (all participants combined). When pooled data from both groups were analyzed, there was a significant change in plasma folic acid concentrations ( ). (*) There was a significant decline from week 12 to week 30 ( ).
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