iodine
iodine An essential mineral, a trace element; the reference intake is about 140 μg per day. Iodine is required for synthesis of the thyroid hormones, which are iodo‐tyrosine derivatives. A prolonged deficiency of iodine leads to goitre.
Iodine is plentifully supplied by sea foods and by vegetables grown in soil containing iodide. In areas where the soil is deficient in iodide, locally grown vegetables are also deficient, and hence goitre occurs in defined geographical regions, especially inland upland areas over limestone soil. Where deficiency is a problem, salt may be iodized to increase iodide intake.
Iodine is plentifully supplied by sea foods and by vegetables grown in soil containing iodide. In areas where the soil is deficient in iodide, locally grown vegetables are also deficient, and hence goitre occurs in defined geographical regions, especially inland upland areas over limestone soil. Where deficiency is a problem, salt may be iodized to increase iodide intake.
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iodine