2. Relevance to Public Health 2.1 Background and Environmental Exposures to Iodine in the United States
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Iodine is an essential nutrient. An adequate intake of iodine is required for the production of thyroid hormones. The term iodine excess is used in this profile to refer to increases in intake relative to estimated physiological requirements. As a reference point, the chronic dietary intake of iodine in U.S. populations has been estimated to range from approximately 150 to 950 μg/day. Estimates for various populations have ranged from <50 μg/day in iodine-deficient regions to >10 mg/day in populations that regularly ingest seaweeds containing a high iodine content. The National Research Council (NRC) Recommended Dietary Allowance (RDA) for iodine is 150 μg/day (2.1 μg/kg/day for a 70-kg adult), with additional allowances of 25 and 50 μg/day during pregnancy and lactation, respectively.
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2. Relevance to Public Health 2.1 Background and Environmental Exposures to Iodine in the United States
Iodine is an essential nutrient. An adequate intake of iodine is required for the production of thyroid hormones. The term iodine excess is used in this profile to refer to increases in intake relative to estimated physiological requirements. As a reference point, the chronic dietary intake of iodine in U.S. populations has been estimated to range from approximately 150 to 950 μg/day. Estimates...
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تاریخ انتشار 2004