Noniodized

Noniodized is an adjective used to describe substances that do not contain iodine or do not have iodine added as an additive. In everyday usage, it most often refers to salt, indicating that no iodine was added during processing.

In the context of table salt, noniodized salt is produced without the fortification step that yields iodized salt. It may still contain trace iodine present naturally in the mineral content of the source or from incidental exposure during processing, but it does not receive deliberate iodine fortification. Iodized salt, by contrast, contains added iodine, typically in the form of iodide or iodate salts, to help prevent iodine deficiency in populations.

Beyond salt, the term noniodized can apply to other products or formulations that are deliberately prepared without iodine. This can be relevant in pharmaceutical or laboratory settings where the presence of iodine might interfere with reactions or measurements, or in dietary products for individuals who need to monitor iodine intake. Packaging and labeling usually specify whether a product is iodized or noniodized to inform consumers and manufacturers.

Health and regulatory considerations vary by region. Some countries require iodine fortification of table salt, while others permit or encourage noniodized varieties for specific uses. Consumers seeking to manage iodine intake should read labels and consult dietary guidelines or healthcare providers as needed.

See also: iodized salt, iodine deficiency, thyroid function.