Iodized salt is sodium chloride enriched with iodine. Potassium iodate and potassium iodide are common iodine compounds used to treat salt. Iodized table salt is typically mixed with an anti-caking agent to keep it free flowing in humid environments, and possibly dextrose to prevent evaporation of the iodine compound.

Health considerations

Iodine deficiency leads to problems with the thyroid gland and intellectual impairment. It was a significant issue in previous decades, leading to introduction of iodization of table salt in the USA in the 1920s. Other nations followed suit across following decades, becoming mandatory in some countries within the past 15 years.

Keep in mind

Individuals who entirely avoid table salt and iodine-containing salt substitutes should be conscious of finding alternative sources of iodine in their diet. Salt used in processed foods is not typically iodized. Individuals consuming extremely high levels of salt should be conscious of the negative effects of excessive iodine intake.

May be found in

Table salt


Salt Institute
Business Insider
Science Magazine

Alternative Spellings and Names

Sodium, sodium chloride

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