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Updated: Jul 3, 2026

Modifying Levels of Maternal Dietary Folic Acid or Choline to Study the Impact of Deficiencies on Offspring Health Outcomes
Published on: June 28, 2024
Folate and clefts of the lip and palate--a U.K.-based case-control study: Part I: Dietary and supplemental folate
J Little1, M Gilmour, P A Mossey
1Human Genome Epidemiology, University of Ottawa, Ottawa, Ontario, Canada.
Objectives:
We sought to determine the associations between nonsyndromic cleft lip with or without cleft palate (CL-P) and cleft palate only (CP) and maternal intake of dietary folate and supplemental folic acid, in an area where the prevalence at birth of neural tube defects has been high and flour is not fortified with folic acid.
Methods:
Interviews regarding periconceptional dietary intake and supplement use were completed with the mothers of 112 CL-P cases, 78 CP cases, and 248 unaffected infants. The data were analyzed by logistic regression methods.
Results:
There was no overall association between CL-P and CP and either energy-adjusted total folate intake or supplemental folic acid use, irrespective of dosage.
Conclusion:
Overall, higher intakes of total folate do not appear to prevent oral clefts in this population.
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