What’s Iodide?

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Iodide is a form of iodine that carries a slightly different atomic charge and is normally chemically bonded with an element potassium or sodium. While many people use the two words interchangeably, that’s not exactly correct. An iodine atom lacks the negative charge found with an iodide ion. Also, there are some applications for iodine that are unsuitable for this form and vice versa.

There are a number of different iodide compounds that are in use for a variety of purposes. Hydrogen and potassium iodide are two examples of ions that can be used in antioxidant applications. Sodium iodide can aid in the preservation of fabrics and similar materials. Other forms include silver, nitrogen and carbon iodide. Many of these variations occur in nature, but can also be created in the laboratory.

One medical application of iodide ions is in the treatment of an overactive thyroid gland. Essentially, the ion can help block the release of excess thyroid hormone into the bloodstream, thus helping to curb symptoms such as anxiety and nervous agitation. However, it should be noted that its use in this application is rarely conducted as a standalone treatment. Because hyperthyroidism normally manifests a number of different symptoms, iodide is usually an ingredient in medications that tackle the task of managing symptoms and restoring a balance in the production of thyroid hormones. Additionally, some modern thyroid treatments forgo the use of this ion altogether, noting that the blocking effect can backfire once treatments are stopped.

Iodide is a naturally occurring substance that appears throughout nature. One of the richest portions is in the oceans. Seaweed is an excellent source. Algae cells require some kind of protective coating to thrive. Iodide is one of the components that help provide that protection. Plankton also serve as a rich storehouse, as well as contain selenium and various fatty acids.

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