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Iodine, Urineug/L

Urine iodine reflects recent iodine intake, which the thyroid needs to make hormone.

See your own Iodine, Urine on its range.

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What Iodine, Urine measures

Urine iodine reflects recent iodine intake, which the thyroid needs to make hormone.

If your Iodine, Urine is low

Urine iodine below the range reflects low recent intake, commonly associated with diets low in iodized salt, dairy and seafood.

Commonly associated with

Worth asking your clinician: Whether intake is worth reviewing, especially in pregnancy.

If your Iodine, Urine is high

Urine iodine above the range reflects high recent intake, commonly from supplements, seaweed or iodine-containing medications and contrast dyes.

Commonly associated with

Worth asking your clinician: Whether thyroid tests look typical, since both too much and too little iodine affect the thyroid.

Typical reference range

GroupTypical range
Adults100 – 300 ug/L

Typical adult values used by many US labs. Your own report prints the range your lab validated for its method, and that range is the one that counts. Labwise always uses the printed range first.

If it is within range

Your urine iodine is within the range printed by your lab.

Also listed as

Urine Iodine, Iodine, Random Urine, Urinary Iodine

Related tests

This page is general information about what a laboratory test measures and what results outside a reference range are commonly associated with. It is not medical advice, does not diagnose any condition and does not replace your clinician. Discuss your results with your healthcare provider.