Iodine deficiency is the lack of sufficient levels of iodine to satisfy daily metabolic requirements. This deficiency may lead to hypothyroidism and thyroid hypertrophy (endemic goiter). Other effects range from dental caries to cretinism in infants born to mothers with iodine deficiency. Insufficient ingestion of dietary iodine or increased metabolic demands during pregnancy, lactation, and adolescence may cause this deficit. Signs and symptoms vary. Treatment consists of iodine supplements.
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