Folic acid = synthetic folate (B9), essential for ๐ cellular growth & division. Critical for fetal ๐ผ development & maternal health.
- Mechanism: ๐จ Key for DNA synthesis & repair. ๐ฅ Supports rapid cell growth, especially in ๐ถ embryos.
- Indications: ๐ Prevents Neural Tube Defects (NTDs): Spina bifida, anencephaly. ๐ Czeizel AE, et al. NEJM. 1992;327:1832-5.
- Dosing: ๐ฉโ๐ง Preconception & 1st trimester 400-800 mcg/day. โ ๏ธ Higher doses (4-5 mg) for โฌ๏ธ risk (e.g., hx of NTDs). ๐ De-Regil LM, et al. Cochrane. 2010.
- Benefits: โ Prevents NTDs, may reduce congenital heart defects & orofacial clefts. ๐ Koren G, et al. Reprod Toxicol. 2006.
- Safety: ๐ Generally well-tolerated. โ ๏ธ Excess can mask B12 deficiencyโbalance is ๐!
References
- Czeizel AE, Dudรกs I, Vereczkey A, Bรกnhidy 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, Fernรกndez-Gaxiola AC, Dowswell T, Peรฑa-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.