Fasting erythrocyte folate and fasting serum folate (RBC folate and serum folate)
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Folic acid and its derivatives are necessary to nucleic acid synthesis. The daily folate requirement is ca. 100–200 µg, while the body’s folate reserves last approximately 3-4 months. In the presence of folate deficiency, serum concentrations decrease in about three weeks, while erythrocyte conce...