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To ensure we aren’t making any unsubstantiated claims and should you want to know more about the medical facts shared on our page, please see a list of references below. This section will be updated with references as and when required. Please correlate the numbering included on the post to find the relevant reference.

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  • Ref 3. [internet]: Folic Acid and Pregnancy [Medical Reference Reviewed by Traci C. Johnson, MD on 02 June 2018]. Accessed: 19 March 2020
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  • Ref 8. [internet]: Folic Acid and Pregnancy [Medical Reference Reviewed by Traci C. Johnson, MD on 2 June 2018]. Accessed: 29 October 2019
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  • Ref 11. EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA). Scientific Opinion on the substantiation of health claims related to folate and blood formation (ID 79), homocysteine metabolism (ID 80), energy-yielding metabolism (ID 90), function of the immune system (ID 91), function of blood vessels (ID 94, 175, 192), cell division (ID 193), and maternal tissue growth during pregnancy (ID 2882) pursuant to Article 13(1) of Regulation (EC) No 1924/20061. EFSA Journal 2009;7(9):1213.
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  • Ref 14. Wilson RD, et al. Preconceptional vitamin/folic acid supplementation 2007: the use of folic acid in combination with a multivitamin supplement for the prevention of neural tube defects and other congenital anomalies. J Obstet Gynaecol Can 2007;29(12):1003–1013.
  • Ref 15. McNulty H, Scott JM. Intake and status of folate and related B-vitamins: considerations and challenges in achieving optimal status. Br J Nutr 2008;99(Suppl 3):S48-S54.
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  • Ref 21. Brosens I, et al. Endometriosis in adolescents is a hidden, progressive and severe disease that deserves attention, not just compassion. Human Reproduction. 2013.  Vol.28, No.8 pp. 2026–2031.
  • Ref 22. Greenberg JA, Bell SJ, Guan Y, Yu YH. Folic acid supplementation and pregnancy: more than just neural tube defect prevention. Rev Obstet Gynecol 2011;4(2):52-59.
  • Ref 23. USDA National Nutrient Database for Standard Reference. Revised May 2016. Available at /foods/show/2871fgcd=&manu=&lfacet=&format=&count=&max=50&offset=&sort=default&order=asc&qlookup=raw+broccoli&ds=&qt=&qp=&qa=&qn=&q= &ing= [Last accessed November 2019].
  • Ref 24. National Institutes of Health: Office of Dietary Supplements. Health Professional Folate Dietary Supplement Fact Sheet. April 2016. Available at Last accessed September 2019.
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  • Ref 28. Graziottin A. The shorter, the better: A review of the evidence for a shorter contraceptive hormone-free interval. The European Journal of Contraception and Reproductive Health Care 2016;21:93 –105.
  • Ref 29. Planned Parenthood - How long does it take for the pill to become effective? [Accessed: 1 June 2021].
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