GI Map Test UK with Zonulin

The GI-MAP stool test analyses a wide range of microorganisms and functional markers that influence digestion, immunity, inflammation, and gut barrier integrity.

Please see a GI-MAP stool test UK sample report here:

• **Zonulin**
  – Included as standard
  – A marker associated with intestinal permeability (“leaky gut”)

• *Beneficial bacteria**

  – Includes species such as *Bacteroides fragilis*, *Bifidobacterium spp.*, *Lactobacillus spp.*, *Akkermansia muciniphila*, *Faecalibacterium prausnitzii*, *Enterococcus spp.*, and *Roseburia spp.*
  
  

• **Opportunistic / dysbiotic bacteria**
  
  – Includes organisms such as *Klebsiella*, *Enterobacter cloacae*, and *Streptococcus*
  – These may be associated with bloating, diarrhoea, IBS, or SIBO-like symptoms when overgrown
• **Pathogenic bacteria**

– Includes species such as *Clostridioides difficile*, *Salmonella*, and *E. coli O157*
– These are commonly linked to food poisoning and acute diarrhoeal illness

**Yeast and fungal organisms**
– Includes *Candida albicans*, *Geotrichum*, *Microsporidium*, and *Rhodotorula*
– Overgrowth may be associated with bloating, sugar cravings, fatigue, and recurrent thrush

**Parasites**
– Includes organisms such as *Blastocystis hominis* and *Giardia*
– These may contribute to diarrhoea, abdominal pain, and nutrient malabsorption

 Instead of a vague “present/absent,” GI-MAP measures how much, so you and your practitioner can see what’s driving bloating, IBS symptoms, skin flares, fatigue, or persistent gut issues and treat them with confidence.

• Quantified results, not guesses – The test is able to measures the load of key organisms (bacteria, parasites, and yeast such as Candida), plus beneficial species and dysbiosis patterns.

• It includes gut-inflammation and digestion markers (e.g., calprotectin, secretory IgA, pancreatic elastase, beta-glucuronidase, and fecal fat) to assess barrier integrity, immune tone, and digestive efficiency.

• Pathogens – Screens for bacteria, yeast, viruses  and H. pylori (with reported virulence factors)

Who should use the test? If you have IBS/IBD-like symptoms, reflux, bloating, constipation or diarrhoea, unexplained fatigue or brain-fog, skin concerns (acne/rosacea/eczema), recurrent infections, or stubborn symptoms after antibiotics, travel, or food poisoning, this test may be very helpful.

We offer consultations at our London Harley Street clinic or via Zoom to help detailed interpretation of the test results and will recommend supplements, and dietary advice.

Case Study- James

James had long-standing IBS-C and post-meal bloating; His GI-MAP test showed an overgrowth of yeast and mild dysbiosis. After a 4-week plan (diet, anti-fungals and probiotics) his stools became more regular and bloating reduced.

Case Study – Kate

Kate had cyclical acne with bloating/food reactions; The GI-MAP showed Candida overgrowth and elevated β-glucuronidase. A 8-week plan (phased low-sugar diet, microbiome-supportive fibre, targeted nutraceuticals) led to calmer skin and less bloating by weeks 6–8.

• The test only requires one stool sample.

• Lactoferrin: If you’re taking lactoferrin, wait 72 hours after your last dose before collecting your sample.

• Digestive aids & pain relief: Avoid digestive enzymes, antacids, and aspirin for 2 days before collection (unless your healthcare provider advises otherwise).

• Antibiotics, antimicrobials & probiotics:

  • For antibiotics, antiparasitics, antifungals, probiotics, wait at least 14 days after your last dose before testing.

  • For antibiotics specifically, wait at least 14 days where possible (unless your doctor instructs otherwise).

• Kit guide: Please read and follow all instructions included with your GI-MAP® stool test kit.

Never discontinue prescription medications without first consulting your doctor.

Yes, we do offer consultations in Harley street or via zoom.

1. Review of Results:
   Your functional medicine practioner  will carefully review your results to identify any imbalances or pathogens that may be affecting your gut health.
2. Understanding the Findings:
   The results will include information about various gut bacteria, viruses, parasites, and other markers that reflect your digestive health. We will explain what each finding means in relation to your symptoms and overall health.
3. Personalized Treatment Plan:
   Based on your results, we will recommend a personalized treatment plan. This could include dietary changes, supplements, or other interventions designed to restore balance to your gut microbiome.
4. Follow-Up:
   You may have a follow-up appointment to discuss your results in more detail, monitor your progress, and make any necessary adjustments to your treatment plan.
5. Additional Testing:
   In some cases, we might suggest further testing if specific issues are identified that require more investigation.
6. Lifestyle Recommendations:
   Alongside treatment options, we may offer lifestyle recommendations aimed at promoting a healthier gut, such as stress management techniques,  and exercise.

Frequently Asked Questions About the GI-MAP Test

1. What is the GI-MAP test?
The GI-MAP is a DNA-based stool test (qPCR technology) that analyses your gut microbiome, digestion, and immune markers. It can identify bacteria, parasites, viruses, and fungi, giving a much deeper picture of gut health than standard stool cultures.

2.GI-MAP Test vs NHS Stool Test – What’s the Difference? 
NHS stool tests are mainly designed to detect acute infections like Salmonella or E. coli. They don’t usually assess gut flora balance, yeast, or digestive function. GI-MAP, on the other hand, screens for a wide range of microbes and functional markers, helping to uncover the root causes of chronic gut symptoms.

3. What does the GI-MAP test measure?
The test looks at bacteria (both normal flora and opportunistic species), parasites, viruses, fungi/yeast, markers of digestion (like elastase-1), fat absorption (steatocrit), and inflammation/immune activity (calprotectin, secretory IgA). It also checks for Zonulin/leaky gut and antibiotic resistance genes.

4. Can I get the GI-MAP test on the NHS?
No, the GI-MAP test is not available on the NHS. It is only offered privately through registered practitioners and clinics.

5. How much does the GI-MAP test cost in the UK?
The test costs £345 and includes Zonulin a marker for leaky gut. The price includes  the kit, courier service, full lab report.

6. How do I collect a GI-MAP stool sample at home?
Only a small stool sample is needed. The sample is mixed with a stabilising solution, so it can be shipped safely at room temperature by courier.

7. How long does it take to get results?
Once the lab receives your sample, results are usually ready within 2–3 weeks. 

8. Do I need to stop supplements or medications before the test?
Yes, certain supplements and medications can affect results. For example, antibiotics, antifungals, and probiotics may need to be paused before testing. 

9. Is the GI-MAP test suitable for children?
Yes, the test can be used in children. However, treatment options may be different for children than for adults, so results should always be interpreted with a qualified practitioner.

10. Will the GI-MAP test help with IBS or other gut symptoms?
Yes. Many people with IBS, bloating, reflux, diarrhoea, or constipation have normal NHS stool results. The GI-MAP often reveals imbalances (such as elevated zonulin, yeast, parasites, or low digestive enzymes) that can guide a more targeted and personalised approach.

11. Can GI-MAP diagnose SIBO?
No—SIBO is diagnosed via breath testing. GI-MAP can reveal co-factors (e.g., dysbiosis, low elastase, H. pylori, inflammation) that sustain symptoms.

12. Does a positive organism always mean treatment?
Not necessarily—load values, symptoms and history guide decisions. Some findings are transient or clinically insignificant.

Our GI-MAP testing can be sent to you at home – we ship all over the UK and Europe. If you would like to order a test you can order online call us on 0345 1297996 or Contact us