Folic acid = synthetic folate (B9), essential for π cellular growth & division. Critical for fetal πΌ development & maternal health.
- Mechanism: π¨ Key for DNA synthesis & repair. π₯ Supports rapid cell growth, especially in πΆ embryos.
- Indications: π Prevents Neural Tube Defects (NTDs): Spina bifida, anencephaly. π Czeizel AE, et al. NEJM. 1992;327:1832-5.
- Dosing: π©π§ Preconception & 1st trimester 400-800 mcg/day. ⚠️ Higher doses (4-5 mg) for ⬆️ risk (e.g., hx of NTDs). π De-Regil LM, et al. Cochrane. 2010.
- Benefits: ✅ Prevents NTDs, may reduce congenital heart defects & orofacial clefts. π Koren G, et al. Reprod Toxicol. 2006.
- Safety: π Generally well-tolerated. ⚠️ Excess can mask B12 deficiency—balance is π!
References
- Czeizel AE, DudΓ‘s I, Vereczkey A, BΓ‘nhidy F. Folate deficiency and folic acid supplementation: the prevention of neural-tube defects and congenital heart defects. Nutrients. 2013;5(11):4760-4775.
- De-Regil LM, FernΓ‘ndez-Gaxiola AC, Dowswell T, PeΓ±a-Rosas JP. Effects and safety of periconceptional folate supplementation for preventing birth defects. Cochrane Database Syst Rev. 2010;(10):CD007950.
- Lassi ZS, Salam RA, Haider BA, Bhutta ZA. Folic acid supplementation during pregnancy for maternal health and pregnancy outcomes. Cochrane Database Syst Rev. 2013;2013(3):CD006896.