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Iodine Urine Test
Iodine Urine Test

Iodine Urine Test

A simple urine test to check levels of iodine in the body.
Urine sample 3 biomarkers included 9 working days turnaround
from sample receipt at lab

What's included?

Biomarker profiles

  • Minerals
  • Kidney Health

Minerals (2 Biomarkers)

Kidney Health (1 Biomarker)

Special instructions

Avoid iodine containing food supplements, fish, seafood and iodised or sea salt for at least 48 hours before taking your sample. If you have had an xray or CT scan which involved an injection of intravenous contrast then you should wait 96 hours before taking your sample.

This test measures urinary iodine levels to give an indication of iodine levels in the body. Iodine is an essential trace element, important for healthy thyroid function, required to produce T3 and T4 thyroid hormones. Whether it is determining how fast your heart beats or how quickly your intestines process your food, thyroid hormones control the speed at which your body cells work. Without these hormones, the body would be unable to convert nutrients into energy.

Iodine is obtained through the diet and good sources include shellfish, dairy products and seaweed. Most people should be able to get all the iodine they need by eating a varied and balanced diet. The majority of iodine that is ingested is excreted via the urine. Measuring the amount of iodine excreted through the urine helps to determine iodine levels in the body.

Low levels of dietary iodine reduce the production of T3 and T4 thyroid hormones as without sufficient levels of iodine in the body, the thyroid is not able to function properly. Low thyroid hormone levels ultimately slow down the body’s metabolism.

Dr Sam Rodgers MBBS, MRCGP

Laboratories you can trust

Laboratories you can trust

Trusted by the NHS and private clinics alike, you can be sure of the highest testing standards from our fully accredited partner laboratories.

Expert interpretation <br>
of your results

Expert interpretation
of your results

One of our team of doctors will review your results and give you personalised advice based on your medical history, lifestyle and health and fitness goals.

Your personal<br>
health centre

Your personal
health centre

Discover the easy way to track your health through our online portal, View your results with doctor's advice, monitor any changes over time and see the improvements you can make to your health with simple lifestyle changes.

Questions? Let us help

Questions? Let us help

Our customer care team is on-hand to help you find the test that's right for you. Get in touch via phone, live chat or email.

What our customers say

We ask every Medichecks customer about their experience - read what they have to say


Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.