This site is intended for healthcare professionals

Go to /sign-in page

You can view 5 more pages before signing in

Urinary iodine concentrations (UIC)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Measures of iodine excess

  • overall iodine levels cannot be reliably measured in individuals given the considerable day-to-day variation in iodine intake (1)
    • median urinary iodine concentrations (UIC)
      • have been widely used as a biomarker of population iodine intake
      • levels >300 µg/l considered excessive in children and adults and levels >500 µg/l considered excessive in pregnant women (1)


  • Leung AM, Braverman LE. Consequences of excess iodine.Nat Rev Endocrinol. 2014 Mar; 10(3): 136-142.

Related pages

Create an account to add page annotations

Annotations allow you to add information to this page that would be handy to have on hand during a consultation. E.g. a website or number. This information will always show when you visit this page.