ArticlePediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology2026
Association between maternal dietary isoflavone consumption during pregnancy and childhood food allergy in offspring: The Japan Environment and Children's study.
Article in Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Association between maternal dietary isoflavone consumption during pregnancy and childhood food allergy in offspring: The Japan Environment and Children's study.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2026Article
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8 authors.
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Abstract
backgroundIsoflavone (ISO) consumption during pregnancy may affect food allergy (FA) in offspring through estrogen-like and other biological effects; however, this ISO-FA association in mother-child pairs remains elusive. Herein, the maternal ISO-childhood FA association was investigated using the Japanese birth cohort data.
methodsThe data from the Japan Environment and Children's Study, including 86,012 and 75,307 mother-child pairs, with FA in children aged ≤1 year and 1-3 years, respectively, were analyzed. Maternal ISO consumption (total daidzein and genistein) was assessed using a food frequency questionnaire. Physician-diagnosed FA data were obtained using questionnaires completed by caregivers. ISO consumption data was categorized into quartiles (Q1: reference), and the ISO-FA association was assessed through multivariable logistic regression analysis after adjusting for maternal age, educational level, smoking status, pre-pregnancy body mass index, history of allergies, blood folic acid concentration, total energy intake, and infant feeding method up to 4 months of age.
resultsOverall, FA cases in children aged ≤1 and 1-3 years were 6.6% and 12.1%, respectively. Maternal ISO consumption was negatively associated with FA in all children aged ≤1 year (Q3, adjusted odds ratio [aOR]: 0.91, 95% confidence interval [CI]: 0.84-0.99; Q4, aOR: 0.86, 95% CI: 0.79-0.93) and in those aged 1-3 years (Q3, aOR: 0.93, 95% CI: 0.88-0.99; Q4, aOR: 0.88, 95% CI: 0.83-0.95). Furthermore, in sex-stratified analysis, a negative association was observed between maternal ISO consumption and FA in female children of all ages, whereas this inverse association was observed only in 1-3-year-old male children.
conclusionsOverall, the findings show that maternal ISO consumption during pregnancy may reduce the risk of childhood FA, exhibiting sex-difference effects on offspring development.
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