Indicator Explainer
Folic Acid
A collective term for pteroylglutamic acids and their oligoglutamic acid conjugates. As a natural water-soluble substance, folic acid is involved in carbon transfer reactions of amino acid metabolism, in addition to purine and pyrimidine synthesis, and is essential for hematopoiesis and red blood cell production. (NCI05)
This page explains what the indicator is and how results are interpreted in general terms. Reference ranges depend on the laboratory, the method, and your own situation — no single “normal value” applies to everyone. This page is health information, not a diagnosis. For symptoms, treatment, or urgent concerns, contact a healthcare professional.
When it is tested
Source: National Cancer Institute, NCI Thesaurus 26.09d, C510. NCI definition, reproduced without modification under CC BY 4.0. Source identity and definition checked automatically on 2026-10-18. No individual clinical interpretation or human reviewer is asserted.
Reading results
Reference intervals and interpretation depend on the laboratory, specimen, method and clinical context. This source definition is educational information; it does not establish a diagnosis, product approval or suitability for an individual.
Also Known As
References
- NCI Thesaurus 26.09d — Folic Acid (C510)
- Source: National Cancer Institute, NCI Thesaurus 26.09d, C510. NCI definition, reproduced without modification under CC BY 4.0.
- Surface-functionalized niosomes using a folic acid-chitosan conjugate for delivery of capecitabine in breast cancer: In vitro and in vivo characterization. — Int J Biol Macromol, 2026-10-09 (PMID 42855091; literature)
- The Effect of the MTHFR C677T Genotype Polymorphism on the Efficacy of Folic Acid Treatment for Hyperhomocysteinemia and Cardiovascular Endothelial Function. — Chronic Dis Transl Med, 2026-10-08 (PMID 42852313; literature)
- Targeted anti-inflammatory effects of folic acid-conjugated chitosan-ZnO NPs: Modulation of inflammatory cytokines and oxidative stress. — Int J Biol Macromol, 2026-10-06 (PMID 42838162; literature)
- Effects of Vitamin B12, Folic Acid, and L-Carnitine on Congenital Malformations Induced by Vitamin A Hypervitaminosis. — Birth Defects Res, 2026-10-01 (PMID 42823556; literature)