Subjects | Serum folate | Red cell folate | Folic acid |
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Mean | 14.77 | 693.94 | 0.21 |
SD | 5.01 | 198.72 | 0.16 |
CI (95%) | 12.38 – 19.22 | 434.87 – 903.49 | 0.29 – 0.52 |
- This table illustrates mean red cell folate (μg/L), total serum folate and unmetabolised folic acid (μg/L) concentrations after consuming a 400 μg folic acid supplement daily for 14 weeks (n = 19). 6 subjects had detectable folic acid levels (>0.312 μg/L).
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Normal reference range for red cell folate is in the range of 150–1000 μg/L and for total serum folate is 2.7–20 μg/L