No association between long-chain n-3 fatty acid intake during pregnancy and risk of type 1 diabetes in offspring in two large Scandinavian pregnancy cohorts

Nicolai A. Lund-Blix, Anne A. Bjerregaard, German Tapia, Ketil Størdal, Anne Lise Brantsæter, Marin Strøm, Thorhallur I. Halldorsson, Charlotta Granstrøm, Jannet Svensson, Geir Joner, Torild Skrivarhaug, Pål R. Njølstad, Sjurdur F. Olsen, Lars C. Stene

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Abstract

Aims/hypothesis The aim of this study was to investigate whether higher dietary intake of marine n-3 fatty acids during
pregnancy is associated with a lower risk of type 1 diabetes in children.
Methods The Danish National Birth Cohort (DNBC) and the Norwegian Mother, Father and Child Cohort Study (MoBa)
together include 153,843 mother–child pairs with prospectively collected data on eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) intake during pregnancy from validated food frequency questionnaires. Type 1 diabetes diagnosis
in children (n=634) was ascertained from national diabetes registries.
Results There was no association between the sum of EPA and DHA intake during pregnancy and risk of type 1 diabetes
in ofspring (pooled HR per g/day of intake: 1.00, 95% CI 0.88, 1.14), with consistent results for both the MoBa and the
DNBC. Robustness analyses gave very similar results.
Conclusions/interpretation Initiation of a trial of EPA and DHA during pregnancy to prevent type 1 diabetes in ofspring
should not be prioritised.
Original languageEnglish
Pages (from-to)1023–1028
Number of pages6
JournalDiabetologia
Volume2024
Issue number67
DOIs
Publication statusPublished - Jun 2024

Keywords

  • Child health
  • Cohort studies
  • Human
  • Intrauterine nutrition
  • Maternal and child health
  • Nutrition
  • Pregnancy
  • Type 1 diabetes

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