Iodine: Its Role in Thyroid Hormone Biosynthesis and Beyond
3. Iodine Metabolism. Iodine is mainly ingested as iodide (I −); iodate (IO 3 −), which is generally used in salt iodization; or organically bound iodine.More than 90% of ingested iodide is absorbed in the duodenum [1,4,38].Iodate is reduced in the gut to iodide before absorption, whereas the organically bound iodine is digested, and the released …