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Iodine deficiency

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Iodine is nutritionally essential, being necessary for synthesis of the thyroid hormones, thyroxine and triiodothyronine.

Worldwide, iodine deficiency is a major cause of goitre, hypothyroidism and cretinism. In developing countries, it typically occurs in mountainous regions which often exhibit 'endemic goitre'. Most individuals are euthyroid with normal or elevated TSH becoming hypothyroid as the deficiency becomes more severe.


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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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