Gut microbiome analysis in Chiswick

What the test measures

Your gut holds a large and varied community of microorganisms, often called the microbiome. This analysis reads the genetic material in a small stool sample so the laboratory can identify which groups of organisms are present and in what proportions. Sequencing also picks up organisms that are hard to grow in culture.

The report groups findings into practical themes: overall bacterial diversity, bacteria with probiotic properties, butyrate-producing bacteria that help nourish the lining of the bowel, bacteria that produce hydrogen sulphide or break down oxalate, and organisms that are potentially pathogenic, along with fungi, archaea, viruses and parasites. Your practitioner uses this alongside your diet and symptoms.

The price includes a stool collection kit from our Chiswick clinic, analysis at the Randox accredited laboratory, a review of your result with an Omnia practitioner, and a GP feedback report on request.

Who it is for

• You have ongoing bloating, wind or irregular bowel habits and want more context alongside standard tests.
• You are changing your diet and would like a baseline of your gut community.
• You have taken several courses of antibiotics and are curious about their effect.
• You want to discuss fibre, fermented foods or probiotics with a practitioner using your own data.
• Your practitioner has suggested a closer look at the balance of organisms in your gut.

Understanding your result

Microbiome results describe patterns rather than giving a single pass or fail value. Your report compares your profile with reference populations, highlighting groups that look higher or lower than usual. Lower diversity, fewer butyrate producers or a notable level of a potentially pathogenic organism are points to explore, not a diagnosis.

Microbiome science is still developing, and there is no single healthy microbiome that suits everyone. This analysis does not replace NHS bowel screening, and symptoms such as blood in your stool, unexplained weight loss or a lasting change in bowel habit should always be checked by your GP.

Preparing for your test

You collect the sample at home using the kit and instructions we give you at the clinic, then return it to us. Avoid contaminating the sample with urine or toilet water. Antibiotics, antifungals, probiotics and bowel preparation can all change the result, so tell us about any recent courses when you book and we will confirm the best timing. No fasting is needed.

If inflammation or infection is a concern, our calprotectin test and H. pylori tests answer more specific questions, and you can compare every blood test and price in Chiswick on our main page.

Questions

How much is a gut microbiome analysis in Chiswick?

Gut Microbiome Analysis costs £299 at Omnia Lifestyle in Chiswick. This covers the collection kit, sequencing at the Randox accredited laboratory, a practitioner review of your profile and a GP feedback report if you would like one.

Can it diagnose irritable bowel syndrome?

No. Irritable bowel syndrome is diagnosed clinically after other causes have been excluded. A microbiome profile can add useful context for diet and lifestyle discussions, but it is not a diagnostic test for any bowel condition.

Should I stop probiotics before the test?

It depends on what you want to learn. Some people test while on their usual routine, others after a break. Tell us what you take when you book and your practitioner will advise.

How often is it worth repeating?

Many people repeat the analysis after a sustained change in diet or lifestyle, often after several months, to see how their profile has shifted. Your practitioner can help you decide whether a repeat would be useful.