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Nutrients 2018, 10(7), 930; https://doi.org/10.3390/nu10070930

New Iodine Food Composition Database and Updated Calculations of Iodine Intake among Norwegians

1
Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, 0372 Oslo, Norway
2
Institute of Marine Research, P.O. Box 1870 Nordnes, 5817 Bergen, Norway
*
Author to whom correspondence should be addressed.
Received: 28 June 2018 / Revised: 14 July 2018 / Accepted: 16 July 2018 / Published: 20 July 2018
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Abstract

Iodine food composition data of Norwegian foods have been sparse and knowledge about different dietary iodine sources limited. We compiled a comprehensive iodine food composition database and estimated dietary iodine intake among adults in the latest Norwegian national dietary survey (Norkost 3). The iodine content of food and beverages were compiled using international guidelines and standards. Iodine content of 3259 food items were compiled, including analytical values, values from other food composition databases, estimated values, and values that were based on recipes. Estimated iodine intake in the Norkost 3 population ranged from 15 to 1462 µg/day. Men had significantly higher intake of iodine than women (p < 0.001). The proportion of men and women with estimated iodine intake below average requirement was 19% and 33%, respectively. In young women, 46% had estimated iodine intakes below average requirement and a high probability of inadequate iodine intake. Several dietary sources contributed to iodine intake and differences in the consumption pattern may put subgroups at risk of insufficient iodine intake. In the coming years, the determination of iodine in foods and national dietary surveys should be regularly performed to monitor the iodine intake in the Norwegian population. View Full-Text
Keywords: iodine; dietary intakes; food composition iodine; dietary intakes; food composition
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Carlsen, M.H.; Andersen, L.F.; Dahl, L.; Norberg, N.; Hjartåker, A. New Iodine Food Composition Database and Updated Calculations of Iodine Intake among Norwegians. Nutrients 2018, 10, 930.

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