Cited by 105Nutritional Studies and DietThyroid Disorders and TreatmentsNutrition and Health Studies

Evaluation of urinary iodine excretion as a biomarker for intake of milk and dairy products in pregnant women in the Norwegian Mother and Child Cohort Study (MoBa)

Brantsæter, A L, Haugen, M, Julshamn, K, Alexander, J, Meltzer, H M·2009·European Journal of Clinical Nutrition

Abstract

Background/objectives Milk and dairy products are the main sources of iodine in the Norwegian diet. This is due to a high consumption of milk and dairy products combined with a relatively high concentration of iodine in milk because of mandatory iodine fortification of cow fodder. The aim of the present study was to investigate the relation between 24-h urinary iodine excretion and estimated dietary intake, and to explore the use of 24-h urinary iodine excretion as a possible biomarker for the intake of milk and dairy products when assessing the validity of a new food frequency questionnaire for pregnant women participating the Norwegian Mother and Child Cohort Study (MoBa).Subject/methods 119 women participated in a validation study. Iodine was analyzed in 24-h urine. Dietary intakes were estimated by a food frequency questionnaire (FFQ) and a 4-day weighed food diary (FD). Using linear regression, predictors of urinary iodine excretion were identified. The triangular method was applied to calculate validity coefficients.Results Significant predictors of 24-h urinary iodine excretion were: intake of dairy products, iodine-containing supplements and intake of fruit/vegetables. Fish/seafood intake and time of the year influenced 24-h urinary iodine excretion, although not significantly. The validity coefficients observed for total intake of dairy products were 0.65, 0.94 and 0.52 for the FFQ, the FD and the 24-h urinary iodine excretion, respectively.Conclusions The present study showed that 24-h urinary iodine excretion may be a useful biomarker for validating the intake of milk and dairy products in pregnant Norwegian women.

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Crossref · 10.1038/sj.ejcn.1602952

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  • Dietary biomarkers include natural food constituents and also food additives such as iodine in milk and contaminants such as polychlorinated biphenyls in fatty fish.

    “Dietary biomarkers not only include natural food constituents but also certain food additives such as iodine in milk (26) or food contaminants such as polychlorinated biphenyls in fatty fish (27).”

    From The food metabolome: a window over dietary exposure (2014) · cites this paper as [26]

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Authors
Brantsæter, A. L., Haugen, M., Julshamn, K., Alexander, J., & Meltzer, H. M.
Affiliations
Norwegian Institute of Public Health (NO)
Corresponding author
Brantsæter, A L
Venue
European Journal of Clinical Nutrition
Published
2007-12-05
Volume
63
Issue
3
Pages
347-354
ISSN
  • 0954-3007 (ISSN-L)
  • 1476-5640
OpenAlex
W2158252324
Cited by
105
References
38
Citations by year
2026: 1 · 2025: 3 · 2024: 5 · 2022: 4 · 2021: 14 · 2020: 5 · 2019: 6 · 2018: 8 · 2017: 9 · 2016: 7 · 2015: 3 · 2014: 10 · 2013: 6 · 2012: 6
FWCI
3.09
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Clinical Nutrition (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutrition and Health Studies
Keywords
urinary iodine excretion, dairy products, dietary biomarkers, pregnant women, food frequency questionnaire validation, iodine intake, iodine supplementation, Norwegian Mother and Child Cohort Study
MeSH terms
Adult, Animals, Dairy Products, Diet, Female, Fishes, Humans, Iodine, Milk, Norway, Pregnancy, Surveys and Questionnaires, Cohort Studies, Biomarkers, Diet Records, Linear Models, Urinalysis, Young Adult

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