This is an important test that is commonly used to diagnose sulphite sensitivity.

1 tests included
5 days turnaround



About Sulphite

What is sulphite?

Sulphites are chemical compounds containing sulphite ions. Sulphites are often added to food and drink as preservatives but occur naturally in some products such as wines. Sulphites are usually broken down by a molybdenum-dependant sulphide oxidase enzyme and they are not typically present in urine.

The presence of sulphites in urine can be the results of molybdenum deficiency, sulphite oxidase enzyme deficiency or hypersensitivity to sulphites.

Sulphite hypersensitivity is more common in individuals with asthma, causing lung irritation and asthmatic symptoms. Some individuals are allergic to sulphites and can suffer from symptoms of anaphylaxis.  

Why take the test?

This test screens for the presence of sulphites in the urine. It is commonly used to diagnose sulphite sensitivity.


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.