Letters Folic acid supplementation before pregnancy remains inadequate BMJ 1999; 319 doi: https://doi.org/10.1136/bmj.319.7223.1499 (Published 04 December 1999) Cite this as: BMJ 1999;319:1499 Article Related content Metrics Responses Peer review Related articles Letter Folic acid and the prevention of neural tube defects Published: 22 July 1995; BMJ 311 doi:10.1136/bmj.311.6999.256 Editor's Choice Folic acid supplementation and the complexities of blame Published: 20 January 2022; BMJ 376 doi:10.1136/bmj.o144 See more Weight loss drugs could make oral contraception less effective, MHRA warns BMJ June 05, 2025, 389 r1169; DOI: https://doi.org/10.1136/bmj.r1169 US abortion restrictions are keeping brain dead pregnant woman on life support BMJ May 30, 2025, 389 r1120; DOI: https://doi.org/10.1136/bmj.r1120 Brazil’s teen pregnancy rate is plummeting: what can other countries learn from it? BMJ May 30, 2025, 389 r852; DOI: https://doi.org/10.1136/bmj.r852 Doctors’ leaders condemn police advice to search for abortion drugs after pregnancy loss BMJ May 20, 2025, 389 r1036; DOI: https://doi.org/10.1136/bmj.r1036 ABC programme to reduce brain injury in childbirth will be rolled out in England BMJ May 13, 2025, 389 r982; DOI: https://doi.org/10.1136/bmj.r982 Cited by... Folic acid supplementation and the complexities of blameFulltext PDF Incidence of open neural tube defects in Nova Scotia after folic acid fortificationFulltext PDF Abstract