Myth-buster
Folic acid fortification could cut neural tube defects to roughly 1 in 1,000 births in Bangladesh — but the projection comes from a modeling study, not a trial.
This is a decision-analysis projection, not a direct test, and it's among the first studies to model this specific combination of folic acid and arsenic exposure — so treat the numbers as a strong hypothesis, not settled fact.
Researchers used existing data to estimate that adding folic acid to the food supply in Bangladesh would dramatically lower neural tube defect rates, from the current high prevalence down to about 9–11 cases per 10,000 births, depending on arsenic exposure levels. The study didn't actually give anyone folic acid or measure real-world outcomes — it's a mathematical forecast, and the dose wasn't specified, so the real-world effectiveness remains to be tested.
Where this fits in the evidence
This is among the first studies we've indexed on Vitamin B9 for Reduced Neural Tube Defect Prevalence — treat it as an early signal until more research accumulates.
The study
- Meta-Analysis
- 2025-06
- Birth defects research
- PubMed: 40552686
- DOI: 10.1002/bdr2.2494
- Full study breakdown →
This is a plain-language summary of a research finding, not medical advice. Pillser surfaces research signals to help you decide what's worth investigating — always consult a qualified professional before changing what you take.