ArticleNutrients2022
Iodine Supplementation in Pregnancy in an Iodine-Deficient Region: A Cross-Sectional Survey.
Article in Nutrients, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 16 citations in OpenAlex.
- Prevalence and Determinants of Iodized Salt Purchase: Findings from an In-Person Supermarket Survey in Northern Portugal.Nutrients · 2026Article
- Stage-specific variations in urinary and salt iodine among pregnant women in Beijing.Frontiers in nutrition · 2026Article
- Sources of dietary recommendations and adherence to clinical guidelines in pregnant women in Germany.BMC pregnancy and childbirth · 2025Article
- An updated review of popular dietary patterns during pregnancy and lactation: Trends, benefits, and challenges.Metabolism open · 2025Review
- International expert consensus on micronutrient supplement use during the early life course.BMC pregnancy and childbirth · 2025Article
- Iodine supplementation for pregnancy in Portugal: identification of nutritional composition of iodine containing supplements and characterization of pharmacy dispenses from 2008-2022.Frontiers in endocrinology · 2025Article
- Maternal Urinary Iodine Concentration during Pregnancy and Its Impact on Child Growth and Neurodevelopment: An 11-Year Follow-Up Study.Nutrients · 2023Article
- Preconception Counseling in Patients with Hypothyroidism and/or Thyroid Autoimmunity.Medicina (Kaunas, Lithuania) · 2022Review
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
Iodine deficiency is a common problem in pregnant women and may have implications for maternal and child health. Iodine supplementation during pregnancy has been recommended by several scientific societies. We undertook a cross-sectional survey to assess the efficacy of these recommendations in a European iodine-deficient region. Urinary iodine concentrations (UIC) were determined in pregnant women before (n = 203) and after (n = 136) the implementation of guidelines for iodine supplementation in pregnancy. Iodine supplementation (200 μg/day) reduced the proportion of pregnant women with severe iodine deficiency (37.4% to 18.0%, p = 0.0002). The median UIC increased from 67.6 µg/L to 106.8 µg/L but remained below the recommended target level (>150 µg/L) for pregnant women. In conclusion, iodine supplementation in pregnant women improved iodine status in this iodine-deficient region but was insufficient to achieve recommended iodine levels in pregnancy. Additional measures, such as the adjustment of the dose or timing of supplementation, or universal salt iodization, may be needed.
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Registered trials
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