Iodine Needs in the Pregnant and Postpartum Woman - American ...

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Increased thyroid hormone production (↑ 50%),:- Thyrotropic regulation by hCG- Estrogen-mediated TBG increaseIncreased Maternal Dietary Iodine Requirementsin PregnancyIncreasedrenal iodineclearance(↑ 30-50%)Iodide transferred to the fetus
Increased Dietary Iodine Requirementsin Lactation• Normal lactating breast ductsconcentrate iodide (via sodiumiodide symporter), secreting itinto milkTazebay et al Nat Med 2000; 6:859-60• Only source of iodine nutritionfor breastfed infants
Page 1: Iodine Needs in the Pregnantand Pos
Page 5 and 6: Iodine Deficiency and Reduced IQ•
Page 7 and 8: Tolerable Upper Limit for Daily Iod
Page 9 and 10: Median Urine Iodine Concentration (
Page 11: Percent with UI
Page 14 and 15: American Thyroid AssociationRecomme
Page 16: Sources of Iodine in U.S. PrenatalM

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