ArticleNutrients2016
Adequate Iodine Status in New Zealand School Children Post-Fortification of Bread with Iodised Salt.
Article in Nutrients, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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Who cites it
17 citing papers in PubMed.
- Iodine-fortified toddler milk improves dietary iodine intakes and iodine status in toddlers: a randomised controlled trial.European journal of nutrition · 2020Trial
- Trial
- Iodine intake and status of school-age girls in Ireland.European journal of nutrition · 2025Article
- Digital tools and technologies used in food fortification: A scoping review.Annals of the New York Academy of Sciences · 2025Article
- Sodium, potassium and iodine excretion and blood pressure of New Zealand school children: a cross-sectional study and comparison with recommended guidelines.BMJ nutrition, prevention & health · 2025Article
- Dietary Iodine Intake and Related Factors among Secondary School Students in Macao.Healthcare (Basel, Switzerland) · 2023Article
- Improving Iodine Status in Lactating Women: What Works?Current nutrition reports · 2022Review
- Nutrient-Level Evaluation of Meals Provided on the Government-Funded School Lunch Program in New Zealand.Nutrients · 2022Article
- The quantification of sodium intake from discretionary salt intake in New Zealand using the lithium-tagged salt method.Frontiers in nutrition · 2022Article
- Iodine, Seaweed, and the Thyroid.European thyroid journal · 2021Review
- Mild-to-moderate iodine deficiency in a sample of pregnant women and salt iodine concentration from Zhejiang province, China.Environmental geochemistry and health · 2020Article
- Mother and Infant Nutrition Investigation in New Zealand (MINI Project): Protocol for an Observational Longitudinal Cohort Study.JMIR research protocols · 2020Article
- Iodine adequacy in reproductive age and pregnant women living in the Western region of Saudi Arabia.BMC pregnancy and childbirth · 2020Article
- Selenium Intake in Iodine-Deficient Pregnant and Breastfeeding Women in New Zealand.Nutrients · 2019Article
- Article
- Inadequate Iodine Intake in Population Groups Defined by Age, Life Stage and Vegetarian Dietary Practice in a Norwegian Convenience Sample.Nutrients · 2018Article
- Iodine Nutritional Status of School Children in Nauru 2015.Nutrients · 2016Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Iodine deficiency re-emerged in New Zealand in the 1990s, prompting the mandatory fortification of bread with iodised salt from 2009. This study aimed to determine the iodine status of New Zealand children when the fortification of bread was well established. A cross-sectional survey of children aged 8-10 years was conducted in the cities of Auckland and Christchurch, New Zealand, from March to May 2015. Children provided a spot urine sample for the determination of urinary iodine concentration (UIC), a fingerpick blood sample for Thyroglobulin (Tg) concentration, and completed a questionnaire ascertaining socio-demographic information that also included an iodine-specific food frequency questionnaire (FFQ). The FFQ was used to estimate iodine intake from all main food sources including bread and iodised salt. The median UIC for all children (n = 415) was 116 μg/L (females 106 μg/L, males 131 μg/L) indicative of adequate iodine status according to the World Health Organisation (WHO, i.e., median UIC of 100-199 μg/L). The median Tg concentration was 8.7 μg/L, which was <10 μg/L confirming adequate iodine status. There was a significant difference in UIC by sex (p = 0.001) and ethnicity (p = 0.006). The mean iodine intake from the food-only model was 65 μg/day. Bread contributed 51% of total iodine intake in the food-only model, providing a mean iodine intake of 35 μg/day. The mean iodine intake from the food-plus-iodised salt model was 101 μg/day. In conclusion, the results of this study confirm that the iodine status in New Zealand school children is now adequate.
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