ArticleMaternal & child nutrition2021
Iodine status during pregnancy and at 6 weeks, 6, 12 and 18 months post-partum.
Article in Maternal & child nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.
- Dairy Intake and Iodine Status in Pregnant and Lactating Women: A Systematic Review and Meta-Analysis.Nutrients · 2025Pooled it
- Enhancing iodine health awareness among adolescents: a study protocol for a multi-country intervention study in educational settings across the UK, Slovenia, Cyprus, Bangladesh, Germany and Pakistan.BMC public health · 2026Article
- Iodine Supplementation Before, During and After Pregnancy.Geburtshilfe und Frauenheilkunde · 2026Article
- Effect of Iodine Nutrition During Pregnancy and Lactation on Child Cognitive Outcomes: A Review.Nutrients · 2025Review
- Modern challenges of iodine nutrition: vegan and vegetarian diets.Frontiers in endocrinology · 2025Review
- Emerging research themes in maternal hypothyroidism: a bibliometric exploration.Frontiers in immunology · 2024Review
- Bioavailability of iodine from a meal consisting of sushi and a wakame seaweed salad-A randomized crossover trial.Food science & nutrition · 2023Article
- Iodine Nutrition in Children ≤2 years of Age in Norway.The Journal of nutrition · 2023Article
- Midwives and public health nurses' knowledge and clinical practice in securing sufficient iodine status in relation to pregnancy: A cross-sectional study.Nursing open · 2023Article
- Infant iodine status and associations with maternal iodine nutrition, breast-feeding status and thyroid function.The British journal of nutrition · 2023Article
- A Scoping Review of Iodine and Fluoride in Pregnancy in Relation to Maternal Thyroid Function and Offspring Neurodevelopment.Advances in nutrition (Bethesda, Md.) · 2023Article
- National monitoring of iodine, sodium, and vitamin D status in toddlers and women of childbearing age - results and lessons learned from a pilot study in Norway.Food & nutrition research · 2023Article
- The Role of Iodine for Thyroid Function in Lactating Women and Infants.Endocrine reviews · 2022Review
- Small-scale fisheries contribution to food and nutrition security-a case study from Norway.npj ocean sustainability · 2022Article
- Maternal health, in-utero, and perinatal exposures and risk of thyroid cancer in offspring: a Nordic population-based nested case-control study.The lancet. Diabetes & endocrinology · 2021Article
- Commercially available kelp and seaweed products - valuable iodine source or risk of excess intake?Food & nutrition research · 2021Article
- Iodine status during pregnancy and at 6 weeks, 6, 12 and 18 months post-partum.Maternal & child nutrition · 2021Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Iodine deficiency during pregnancy and in the post-partum period may lead to impaired child development. Our aim is to describe iodine status longitudinally in women from pregnancy until 18 months post-partum. Furthermore, we explore whether iodine status is associated with dietary intake, iodine-containing supplement use and breastfeeding status from pregnancy until 18 months post-partum. We also assess the correlation between maternal iodine status 18 months post-partum and child iodine status at 18 months of age. Iodine status was measured by urinary iodine concentration (UIC) during pregnancy (n = 1,004), 6 weeks post-partum (n = 915), 6 months post-partum (n = 849), 12 months post-partum (n = 733) and 18 months post-partum (n = 714). The toddlers' UIC was assessed at 18 months of age (n = 416). Demographic variables and dietary data (food frequency questionnaire) were collected during pregnancy, and dietary data and breastfeeding practices were collected at all time points post-partum. We found that iodine status was insufficient in both pregnant and post-partum women. The UIC was at its lowermost 6 weeks post-partum and gradually improved with increasing time post-partum. Intake of milk and use of iodine-containing supplements significantly increased the odds of having a UIC above 100 μg/L. Neither the mothers' UIC, vegetarian practice, nor exclusion of milk and dairy products were associated with the toddlers UIC 18 months post-partum. Women who exclude milk and dairy products from their diets and/or do not use iodine-containing supplements may be at risk of iodine deficiency. The women possibly also have an increased risk of thyroid dysfunction and for conceiving children with nonoptimal developmental status.
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