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iodized salt
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iodized salt, table salt with small amounts of iodine added, usually as potassium iodide, to ensure against dietary deficiency of iodine. Where iodized salt is used, particularly in Switzerland and the United States, endemic goitre has disappeared.

In the United States, iodized salt contains 1 part in 10,000 iodide; in Switzerland, 1 part in 200,000. The World Health Organization recommends 1 part in 100,000. See also iodine deficiency.

This article was most recently revised and updated by Amy Tikkanen.