This is an important test that is helpful for pregnant women, vegetarians and vegans and meaures iodine in the blood.

Finger-prick blood
1 tests included
7 days turnaround



About Iodine

What is iodine?

Iodine is an essential mineral in the diet for the thyroid gland. The thyroid gland is a butterfly-shaped gland in the front of the neck which produces hormones responsible for many functions including metabolism, heart function, digestion and mood. Iodine is used by the body to make thyroid hormone. An iodine deficiency or excess may cause ill health.

A deficiency can lead to reduced thyroid hormone production resulting in hypothyroidism. Symptoms include fatigue, sensitivity to cold, weight gain and depression. Too much iodine can cause burning of the mouth and stomach, diarrhoea and vomiting and in severe cases lead to a coma.

Why take this test?

This test measures iodine in the blood. This may be particularly helpful for pregnant women, vegetarians and vegans to check their iodine consumption is sufficient.


What's tested


How it works



Purchase your Kit

Just order a test online and get your kit delivered right to your door unless you are ordering a COVID-19 Fit to Fly test where you will be given appointment options to attend our clinics across the United Kingdom for a nose and throat swab PCR test at the checkout stage.



Take your test and post

Follow our simple instructions to take your sample and post back the enclosed prepaid envelope to our accredited lab for processing. We also offer home or workplace visits by a qualified nurse. For COVID-19 Fit to Fly tests you must attend one of our partner clinics for our trained collection officers to take your sample. You will then have the results emailed to you.



Get results directly to your dashboard

You will receive an email notification from our medical team when your results are available on your secure personalised health dashboard.