Open Access, Peer-reviewed
pISSN 2288-3886
eISSN 2288-3959
    Korean J Nutr. 2011 Feb;44(1):82-91. Korean.
    Published online Feb 28, 2011.
    https://doi.org/10.4163/kjn.2011.44.1.82
    © 2011 The Korean Nutrition Society
    Review

    Iodine Intake and Tolerable Upper Intake Level of Iodine for Koreans

    Hyun Sook Lee,1 and Hyesun Min2
      • 1Department of Food & Nutrition, Kookmin University, Seoul 136-702, Korea.
      • 2Department of Food & Nutrition, Hannam University, Daejeon 305-811, Korea.
    • To whom correspondence should be addressed. (Email: hsmin@hnu.kr )
    Received January 25, 2011.

    Abstract

    The present study reviewed the effects of excess iodine intake on thyroid function and the incidence of thyroid disease and discussed the scientific basis for establishing a tolerable upper intake level (UL) of iodine for Koreans. ULs are defined as "the highest level of daily nutrient intake that is likely to pose no risk of adverse effects to almost all individuals in the general population." Koreans consume excess iodine from seaweed, and iodine intake is strongly influenced by seaweed consumption. However, no dose-response data derived from subjects consuming excess iodine frequently but not continuously during a lifetime are available. Therefore, the Korean DRI committee set the iodine UL to reduce the risk of adverse health effects by excess iodine intake for Koreans with distinctive seaweed-eating habits.

    Keywords
    iodine excess; thyroid dysfunction; urinary iodine excretion; UL; Koreans

    Tables

    Table 1
    Urinary iodine excretion of Korean normal adults and patients with thyroid disease

    Table 2
    Derivation of Tolerable Upper Intake Levels (UL) of iodine for Koreans

    Notes

    This research was supported by a grant (09082KFDA042) from Korea Food & Drug Administration in 2009.

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    MeSH Terms
    Asians
    Humans
    Incidence
    Iodine
    Seaweed
    Thyroid Diseases
    Thyroid Gland
    Metrics
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