IBS Specialist – London & UK
Told to “learn to live with IBS”? We don’t accept that as the end of the story. At the IBS & Gut Disorder Centre, Harley Street, London we take your symptoms seriously. We see clients in person, in the UK and internationally via zoom.
IBS Specialists as featured in the Guardian
IBS Specialist London
If you’ve been told to “just live with IBS” functional medicine offers a different approach: we look for root causes. Instead of one-size-fits-all advice, we build a plan around your history, symptoms. We believe there is always a reason for IBS symptoms.
If you’ve already seen your GP/gastroenterologist and everything was “normal”
First, you’re not imagining it. Colonoscopies, endoscopies and routine bloods are there to rule out disease. They can be normal while symptoms still disrupt daily life. That’s exactly where we come in: we can help you explore other conditions not routinely investigated by the NHS. We are private IBS specialists practicing functional medicine.
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IBS Tests and other IBS conditions to consider
1) SIBO/IMO hydrogen–methane breath testing
If you have persistent bloating, wind, diarrhoea or constipation you may have small intestinal bacterial overgrowth or Intestinal Methanoogen Overgrowth. In this case we may recommend a glucose or lactulose breath testing to understand the cause of your IBS symtoms.
2) Gut microbiome tests and parasite testing
In some cases we may recommend gut microbiome test or parasite tests.
3) Yeast/Candida Test
If your symptoms include thrush, jock itch, prolonged antibiotic use, oral thrush, cravings for sweets- a candida stool test may be of help.
4) Food intolerance & carbohydrate malabsorption
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Lactose breath test can also be useful when lactose intolerance is suspected. This may be linked with gas and IBS-D.
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Fructose breath test are also useful for IBS-D
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FODMAP intolerance has no single lab test—the gold standard is a structured elimination and phased reintroduction Our IBS specialists can help you with specific dietary plans.
5) Gluten/coeliac assessment
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Coeliac disease: blood tests (via your GP or private lab) while you’re still eating gluten; endoscopic biopsy confirms diagnosis.
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Non-coeliac gluten sensitivity has no definitive test; we use time-limited dietary trials only when appropriate.
7) Stress, sleep & gut–brain factors
There isn’t a “lab test” for stress, but the gut–brain axis matters. We may use short screening questionnaires (e.g., sleep quality, anxiety scales) to tailor simple daily tools that reduce symptom amplification—alongside nutrition.
Who you’ll see:
Victoria Tyler, BSc (Hons), mBANT, CNHC — Registered Nutritional Therapist specialising in IBS, SIBO and complex gut issues. 20+ years in practice. CNHC-registered, BANT member.
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We are based in London on Harley Street and Weymouth Streer but we can see patients all over the UK.
FAQs
1. Do I need a GP referral?
No. You can self-refer. We’re happy to share notes with your GP.
2. Will you just tell me to cut out loads of foods?
No. Restriction is short and purposeful, with early reintroduction so your diet expands again.
3. Is low-FODMAP right for me?
Sometimes. We use it selectively and always reintroduce foods to avoid unnecessary long-term restriction.
4. Can you help post-infectious IBS?
Yes. Sometimes there is a link with SIBO.
5. What about SIBO/IMO?
If your symptoms suggests it (e.g., methane-linked constipation, IBS-D, post-meal bloating), we may recommend glucose/lactulose breath testing and a targeted protocol.
6. When do you refer to gastroenterologist?
If red flags appear, if bile acid diarrhoea/IBD/coeliac needs excluding, or if prescriptions/invasive tests are appropriate.
7. How quickly might I feel better?
Many notice improvements within 4–8 weeks, though timelines vary by subtype and underlying factors.
8. Do you see clients outside London?
Yes—UK-wide and abroad online via secure video.
9. Will you coordinate with my GP?
Absolutely. We share information (with your permission).
Ready to get started?
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Case study
Emily — bloating + IBS-D; diet changes, SIBO testing, short herbal protocol
Emily came to see us complaining of daily bloating (particulary worse by evening), excess wind, and loose mornings. She was very anxious as she sometimes was scared to leave the house as she never knew what might happen. NHS tests were normal and she felt stuck. She developed these symptoms after a severe stomach bug.
We explained to her that certain foods can contribute to bloating (e.g., onions/garlic/fructans, Cabbage large raw-veg portions, carbonated drinks, polyols in “sugar-free” gums) and that sometimes SIBO/IMO can drive bloating and IBS-D, especially after a stomach bug. We tested her for SIBO and her results indicated a high level of Hydrogen.
We helped her with a specific guidelines for a 4 weeks low- FODMAP-diet spaced meals 3–4 hours, cut fizzy drinks/gum, and used 2–3 minutes of mealtime breathing plus a 10–15 min walk after meals.
We recommend a herbal antimicrobial protocol (sometimes called “herbal antibiotics”), which included oregano, for 4 weeks
By week 6 she reported less wind and flatter evenings (bloat from 8/10 → 3/10), and stools mostly Bristol 4–5 with far fewer urgent mornings.By weeks 10–12 she had reintroduced more foods and did not remain on a restrictive diet.
Book a consultation today with an IBS specialist
Laura — IBS-C with methane-type features (IMO); “I finally feel regular”
Laura came to see us complaining of 2–3 bowel movements a week, straining, and a tight, bloated belly by evening. She felt dismissed “I’ve been told to just eat more fibre, and take fybogel but it makes me worse.”
What had already happened (NHS/GP): The NHS ruled out anything sinister – her bloods, coeliac screen, faecal calprotectin were normal. She’d tried general advice to increase fibre/fluids and use over-the-counter laxatives, with poor results.
We explained to her that some people with constipation have methane-type overgrowth (IMO) not technically bacteria but archaea that produce methane. We recommended a hydrogen–methane breath test, which was methane-positive (IMO).
We helped her with a plan she could actually follow:
- Targeted dietary changes, meal spacing, prokinetics and herbal antimicrobials
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weeks 8–10 she was opening her bowels most days (from 2–3/week), straining reduced, and evening bloat eased from 7/10 → 3–4/10. Energy was steadier because mornings were more predictable.
How she put it: “I can plan my week again- huge relief.”