Yes. Some degree of intestinal permeability, as it’s technically known, is normal. However, there is robust evidence that some people have guts that are more permeable than they should be [1]. There’s also evidence that increased intestinal permeability can contribute to a number of disease states [2].

This test is especially helpful for people who suffer from autoimmune conditions, digestive conditions and multiple food sensitivities. However, if you recognise yourself in any of the symptoms listed above, this test may be helpful for you.

At the moment we only ship to UK addresses. If you have a special request, feel free to get in touch.

1 x test instructions sheet
1 x request form
1 x 3g PEG dose
1 x empty sample bottle
1 x plastic postal carrier
1 x return address label

You can download full instructions here.

The results of this test may be affected by medication containing Movicol (Macrogol), diuretics and the supplement Seven Seas Zinc Plus Vitamin C. However, you must not stop any medication in order to take this test. Please speak to your GP first.

You must fast for at least 3 hours before taking the test. For this reason, most people find it easiest to take the test first thing on waking. The whole testing process takes 6 hours, so you’ll need to make sure you can fit it into your day. For more information, you can download the test instructions here.

You should not take this test if you’re suffering from diarrhoea or gastroenteritis. Wait until your digestion is normal before taking the test.

Your results will be posted on your online account 10 days after the lab receives your sample. You’ll receive an email notification when your results are ready.

Simply log in to your Healthpath account here and click ‘Tests’. You’ll be able to access your results and personalised recommendations 10 days after returning your samples (sometimes sooner).

Functional tests are highly specialised and currently not offered through the NHS. At present, the only option is to pay for them privately. We appreciate you want to spend your money wisely, which is why we only offer tests that are genuinely helpful.

All your results data is accompanied by clear, jargon-free explanations. Our practitioners also review all results, providing personalised recommendations that are easy-to-follow and specific to you.

We do offer tests for children, but it’s important you work with a practitioner experienced in working with children.

Personalised, 1 to 1 support with a practitioner is safer and more effective when analysing test results for children and providing appropriate advice.

It is important to reach out to our team to discuss the test before you purchase.

Read about testing for children

Contact customer services

It’s possible, though you’ll need to check the details of your insurance to see what’s included.