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Gut Health & the Microbiome — Specialists, Evidence & Communities

Chapter 15 of 18 in Notbroken's Free Metabolic & Mental Health Help Directory: 45 listings in 7 categories, each carefully checked. Open the full directory of 2299 listings.

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Gut Health & the Microbiome — Specialists, Evidence & Communities

The gut–brain connection is real, the science is young, and the marketing is years ahead of the evidence. This chapter steers between the two. It lists the societies and registers through which you can find a gastroenterologist or a dietitian trained in the low-FODMAP diet and other evidence-based approaches; the independent sources — ISAPP, the Cochrane Library, the World Gastroenterology Organisation, the NIH and the yearly Clinical Guide to Probiotic Products — that say plainly which probiotics have evidence for what; the honest answer on consumer microbiome tests (not yet clinically useful, according to both the US standards agency NIST and European consensus); the regulated routes to faecal microbiota transplantation, which guidelines recommend only for recurrent C. difficile outside clinical trials; the national and umbrella patient organisations for IBS, inflammatory bowel disease and coeliac disease; and the psychogastroenterology directory for finding a therapist who treats disorders of gut–brain interaction. Nothing here replaces your own clinician — changing medication, starting FMT or a restrictive diet is something to do with one. Every page was opened and checked before it was added.

Gastroenterologists & Digestive-Health Services — Find a Specialist

American College of Gastroenterology — Find a Gastroenterologist (United States)

https://gi.org/patients/find-a-gastroenterologist/

Free to search; consultations are billed by the practice and usually covered by insurance. Note: Lists ACG members only — a good gastroenterologist who is not a member will not appear.

What It Does: The American College of Gastroenterology's patient-facing directory for locating an ACG member gastroenterologist near you. Search by location to find GI physicians who belong to the College — useful if you are in the US and want a specialist for IBS, IBD, coeliac disease, reflux or recurrent C. difficile without relying on advertising or review sites.
Who It Helps: People in the United States who need a gastroenterologist, and carers helping someone find one; listings show practice details, not rankings or reviews.

Free to search; consultations are billed by the practice and usually covered by insurance. Note: Lists ACG members only — a good gastroenterologist who is not a member will not appear.

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World Gastroenterology Organisation — Regional & national member society lists (global)

https://www.worldgastroenterology.org/membership/regional-affiliate-associations

Free to browse; national societies' own specialist finders vary. Note: Lists societies, not individual doctors; some national societies have no website or no public finder.

What It Does: The World Gastroenterology Organisation is the federation of more than 100 national gastroenterology societies. This page is the gateway to its four regional member lists (Africa/Middle East, Americas, Asia/Pacific, Europe), each naming the national society for every country with a link to its website — the right starting point when you need the official gastroenterology body in a country not covered elsewhere in this section.
Who It Helps: Anyone, anywhere, trying to find the recognised national gastroenterology society for their country, including patients seeking a professional body to contact and clinicians relocating.

Free to browse; national societies' own specialist finders vary. Note: Lists societies, not individual doctors; some national societies have no website or no public finder.

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United European Gastroenterology — National and specialist member societies (Europe)

https://ueg.eu/about/our-members

Free to browse. Note: A few national societies have no website link; the page lists societies, not individual clinicians.

What It Does: United European Gastroenterology lists its 50 national gastroenterology societies — from Austria and Germany to Ireland, Poland and Portugal — and 17 specialist societies such as ECCO (IBD), ESGE (endoscopy), ESNM (neurogastroenterology) and ESPGHAN (paediatrics), each linking to that society's own website, where you will find clinical standards and, in many cases, member or centre listings.
Who It Helps: People across Europe (including the UK and Ireland) looking for their national gastroenterology society or the European specialist body for IBD, motility disorders or paediatric gut disease.

Free to browse. Note: A few national societies have no website link; the page lists societies, not individual clinicians.

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British Society of Gastroenterology — Information for Patients (United Kingdom)

https://www.bsg.org.uk/information-for-patients

Free.

What It Does: The British Society of Gastroenterology's patient page: it explains that the BSG cannot advise individuals, points you to Guts UK (the charity that grew out of the BSG) and its helpline, then lists contact details and websites for around 25 UK patient organisations covering coeliac disease, IBD, IBS, liver disease, pancreatic conditions and rare GI syndromes. Specialist referral in the NHS comes through your GP.
Who It Helps: UK patients and families who want a vetted list of condition charities from the professional body itself, rather than from search results.

Free.

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Canadian Digestive Health Foundation — Digestive Conditions library (Canada)

https://cdhf.ca/en/digestive-conditions/

Free. Note: Charity partners include food, probiotic and pharmaceutical companies, and it runs a paid “CDHF Certified” product programme — read product mentions with that in mind.

What It Does: The Canadian Digestive Health Foundation's index of 26 plain-language condition pages — IBS, Crohn's, ulcerative colitis, coeliac disease, GERD, C. difficile, gastroparesis, lactose intolerance and a page on the microbiome — written for Canadians, with a free symptom-tracking app (myIBS). There is no specialist finder; in Canada you reach a gastroenterologist through your family doctor.
Who It Helps: Canadians newly diagnosed or investigating gut symptoms, and families wanting readable, Canada-specific information before or after a specialist referral.

Free. Note: Charity partners include food, probiotic and pharmaceutical companies, and it runs a paid “CDHF Certified” product programme — read product mentions with that in mind.

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healthdirect — Service Finder: Australia's national directory of health services (Australia)

https://www.healthdirect.gov.au/australian-health-services

Free; the listed services charge their own fees, many bulk-billed or Medicare-rebated. Note: Listings are self-registered by providers, and specialists are not always searchable by sub-specialty — ask your GP for the referral and use the finder for the practical details.

What It Does: The Australian Government's healthdirect Service Finder searches the National Health Services Directory by service type and suburb or postcode — GPs (with a bulk-billing filter), hospitals, physiotherapy, psychiatry, pathology and the full list of services. In Australia a gastroenterologist or specialist gut dietitian is reached through a GP referral, so this is the practical first step: find a GP, then ask for the referral.
Who It Helps: Anyone in Australia who needs a GP, hospital or allied-health service near them, including as the route to a gastroenterology referral.

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Gut-Health Dietitians — FODMAP-Trained & Registered Dietitian Finders

Monash University FODMAP — FODMAP Dietitians Directory (global)

https://monashfodmap.com/online-training/fodmap-dietitians-directory/

Free to search; dietitian fees vary by country and practitioner. Note: Monash states it “does not endorse the dietetic services” of those listed; completing the course is the only criterion beyond national accreditation.

What It Does: Monash University, which developed the low FODMAP diet for IBS, lists dietitians who have completed and passed its online FODMAP course. Filter by continent, face-to-face or online-only appointments, and language. Every listed dietitian must already be accredited by the dietetic body in their own country, so this is a sensible way to find someone trained to guide the diet properly, including the reintroduction phase.
Who It Helps: People with IBS considering a low FODMAP diet anywhere in the world, and GPs or gastroenterologists who want to refer to a trained dietitian.

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King's College London — FODMAPs & list of King's FODMAP-trained dietitians (United Kingdom)

https://www.kcl.ac.uk/slcps/our-departments/fodmap

Free to read and download the list; dietitian consultations are free on the NHS via referral or charged privately. Note: The dietitian list is a downloadable PDF rather than a searchable directory, and it covers only those who have taken King's courses.

What It Does: King's College London adapted the low FODMAP diet for UK use and trains NHS and private dietitians through its courses. This page explains the diet plainly, stresses that it “is not recommended to be used without specialist dietary advice from a registered dietitian”, and links to a regularly updated list of King's FODMAP-trained dietitians (published as a PDF) that you can use when choosing a UK dietitian.
Who It Helps: UK adults with IBS who want a dietitian trained in the FODMAP approach, and health professionals looking for the courses.

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Dietitians Australia — Find a Dietitian (Australia)

https://dietitiansaustralia.org.au/find-dietitian

Free to search; consultations are paid, with Medicare rebates available under a GP management plan. Note: Dietitians Australia “relies on the professionals listed to provide true and correct information” and does not verify practice-area claims.

What It Does: The national search for Accredited Practising Dietitians (APDs), with filters for location, telehealth and practice areas including irritable bowel syndrome. APD is the credential Medicare, private insurers and the NDIS recognise, so the search is a way to make sure the person advising you on IBS, coeliac or IBD diets is a regulated dietitian rather than a self-styled nutritionist.
Who It Helps: Australians seeking a dietitian for gut conditions, including those on a GP Chronic Disease Management plan, and New Zealanders willing to use telehealth.

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British Dietetic Association — Find a Dietitian, freelance directory (United Kingdom)

https://www.bda.uk.com/find-a-dietitian.html

Free to search; private fees are set by each dietitian. Note: Private practitioners only — NHS dietitians are reached by GP or consultant referral and will not appear here; check HCPC registration via the BDA's linked checker.

What It Does: The British Dietetic Association's directory of around 450 freelance dietitians and dietetic companies, searchable by distance from your postcode and session type (in person, online, telephone, home visit), with clinical-expertise filters for gastroenterology, IBS and low FODMAP. Listed dietitians are BDA members, who must be HCPC-registered to use the protected title “dietitian” in the UK.
Who It Helps: UK and Irish adults who want a private dietitian for IBS, IBD or coeliac disease, or who face long NHS waits for dietetic input.

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Academy of Nutrition and Dietetics — Find a Nutrition Expert (United States)

https://eatright.org/find-a-nutrition-expert

Free to search; visits are paid or billed to insurance. Note: Only Academy members who opt in are listed; the fetched page did not show whether a specific IBS or gut-health specialty filter exists until you search.

What It Does: The Academy's public directory of registered dietitian nutritionists (RDNs) and NDTRs who are Academy members, searchable by location, specialty, language and insurance or payment options. It is the straightforward way in the US to find a credentialed dietitian for IBS (including FODMAP work), coeliac disease, IBD or reflux, instead of an unregulated “nutritionist”.
Who It Helps: Americans looking for a registered dietitian, and clinicians referring patients; many listed RDNs offer telehealth across state lines where licensure allows.

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Dietitians of Canada — Find a Dietitian (Canada)

https://members.dietitians.ca/Web/Web/Membership/Directory/Find_a_Dietitian_Directory.aspx?hkey=81abbd4d-e041-4223-8723-7af2d390f04c

Free to search; private consultations are paid, though many extended health plans cover them. Note: Lists members who opt in; dietitians in Canada are regulated provincially, so verify registration with your provincial college if in doubt.

What It Does: Dietitians of Canada's public directory of member dietitians across all provinces and territories. Search by postal code, city or province, by language, and by health concern — “Digestion and GI nutrition” is one of the options — to find a regulated dietitian for IBS, IBD or coeliac disease.
Who It Helps: Canadians who want a registered dietitian, particularly in private practice where no referral is needed.

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ICDA — National Dietetic Associations member list (global umbrella)

https://internationaldietetics.org/ndas/

Free. Note: India's association is not listed; a handful of entries have no website link, and not every national association runs a public finder.

What It Does: The International Confederation of Dietetic Associations lists its roughly 50 national member associations — Australia, Canada, Japan, Korea, Mexico, Singapore, South Africa, the UK, the US and many more — with links to each association's website. When you need the recognised dietetic body in a country not covered above (for example Mexico's Colegio Mexicano de Nutriólogos), start here.
Who It Helps: Anyone, anywhere, trying to locate the official dietetic association for their country before searching for a local dietitian.

Free. Note: India's association is not listed; a handful of entries have no website link, and not every national association runs a public finder.

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Indian Dietetic Association — Find a Registered Dietitian (India)

https://idaindia.com/registered-dietitians/

Free to browse; consultation fees are set by each dietitian. Note: A plain name list filtered by chapter — no contact details, specialties or search box, and some duplicate entries.

What It Does: The Indian Dietetic Association's public register of dietitians who hold its RD credential, awarded after a national examination and supervised training. Names are grouped by state or city chapter (around 1,200 entries), so you can check whether a dietitian advising you on IBS, coeliac disease or IBD has passed the national RD exam.
Who It Helps: People in India seeking a credentialed dietitian, and anyone wanting to verify an Indian dietitian's RD status.

Free to browse; consultation fees are set by each dietitian. Note: A plain name list filtered by chapter — no contact details, specialties or search box, and some duplicate entries.

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SNDA — List of Accredited Dietitians of Singapore (Singapore)

https://snda.org.sg/accreditations/dietitians

Free to view; consultation fees depend on the hospital or clinic. Note: Names and workplaces only — around 115 for 2026 — with no search, contact details or specialty filter.

What It Does: The Singapore Nutrition and Dietetics Association publishes its annual list of Accredited Dietitians of Singapore (ADS) by name and workplace. Dietetics is not state-registered in Singapore, so SNDA accreditation is the closest thing to a professional register when you want someone qualified to manage IBS, coeliac disease or IBD nutrition.
Who It Helps: People in Singapore looking for a credentialed dietitian, or checking whether a hospital or private dietitian holds ADS status.

Free to view; consultation fees depend on the hospital or clinic. Note: Names and workplaces only — around 115 for 2026 — with no search, contact details or specialty filter.

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Microbiome Science — Trustworthy Evidence, Probiotic Guides & the Truth About Gut Tests

ISAPP — Consumer resources on probiotics, prebiotics & fermented foods (global)

https://isappscience.org/for-consumers/

Free. Note: ISAPP has industry members alongside its academic board, although the site states it does not recommend or endorse specific products.

What It Does: The International Scientific Association for Probiotics and Prebiotics explains what counts as a probiotic (“specific strains of living microorganisms at specific doses” with tested benefits), why not all fermented foods contain probiotics, how to read a label and how to choose a product, through infographics and short videos checked by academic scientists. It does not promote any company or product.
Who It Helps: Anyone deciding whether a probiotic or prebiotic is worth trying, and clinicians wanting plain-language handouts.

Free. Note: ISAPP has industry members alongside its academic board, although the site states it does not recommend or endorse specific products.

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Gut Microbiota for Health (ESNM) — public science portal (global)

https://www.gutmicrobiotaforhealth.com/the-project/

Free. Note: Funded by Danone Research & Innovation and Biocodex (disclosed on its Funding page); editorial control sits with ESNM's scientific section.

What It Does: A public portal on gut microbiota science run since 2012 by the European Society of Neurogastroenterology & Motility. Its News Watch section translates new research for the public in English, French and Spanish; Research & Practice and Food 4 Gut Health sections serve clinicians and dietitians; and there are infographics, videos, monthly newsletters and expert interviews.
Who It Helps: Curious readers who want research news without hype, and dietitians or GPs who want a scientist-edited digest of microbiome studies.

Free. Note: Funded by Danone Research & Innovation and Biocodex (disclosed on its Funding page); editorial control sits with ESNM's scientific section.

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Clinical Guide to Probiotic Products — evidence-graded product charts (United States & Canada)

https://usprobioticguide.com/

Free on the web and as an app. Note: Only products marketed in the US or Canada appear; the chart renders in the browser, so the producer's name and the grading key were not visible in the fetched text and should be read on the site itself.

What It Does: An independently produced, evidence-graded chart of probiotic products actually sold in the United States (a sister chart, probioticchart.ca, covers Canada). Products are listed by indication — adult, women's and paediatric health, and functional foods — with strain, dose and a level-of-recommendation rating, updated yearly, so you can see which named products have trial evidence for antibiotic-associated diarrhoea, IBS or C. difficile prevention.
Who It Helps: Pharmacists, GPs and dietitians choosing a probiotic for a patient, and consumers who want strain-level evidence rather than marketing claims.

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NIH Office of Dietary Supplements — Probiotics fact sheet for consumers (United States)

https://ods.od.nih.gov/factsheets/Probiotics-Consumer/

Free.

What It Does: A plain-English government fact sheet, updated November 2025, covering what probiotics are, which foods contain them, what the evidence says for IBS and antibiotic-associated diarrhoea (“might help”, strain-dependent), who should be careful (preterm infants, seriously ill or immunocompromised people) and how to read a label — including why a higher CFU count is not automatically better.
Who It Helps: Anyone weighing up a probiotic supplement, and carers of people with weakened immunity who need the safety warnings.

Free.

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World Gastroenterology Organisation — Global Guideline: Probiotics and Prebiotics (global)

https://worldgastroenterology.org/guidelines/probiotics-and-prebiotics

Free to download. Note: A clinician-level document — there is no separate patient summary.

What It Does: The World Gastroenterology Organisation's practice guideline on probiotics and prebiotics (2023 edition), with evidence tables of which strains and doses have trial support for specific adult and paediatric gut conditions. Written for clinicians but free, and available in English, French, Spanish, Portuguese, Russian and Mandarin — the most widely translated authoritative reference on the subject.
Who It Helps: GPs, gastroenterologists, pharmacists and dietitians; motivated patients can use its tables to check a product's strain against the evidence.

Free to download. Note: A clinician-level document — there is no separate patient summary.

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Cochrane — Probiotics for preventing C. difficile diarrhoea, plain-language summary (global)

https://www.cochrane.org/evidence/CD006095_what-are-benefits-and-harms-probiotics-preventing-clostridioides-difficile-associated-diarrhea

Free.

What It Does: Cochrane's plain-language summary of its September 2025 systematic review: across randomised trials, probiotics taken alongside antibiotics reduced C. difficile-associated diarrhoea from about 4% to 1.5% (moderate-certainty evidence), with the benefit seen mainly where baseline risk was above 5%, and probably no added harm. A model of how probiotic claims should be read: effect size, certainty and limitations stated plainly.
Who It Helps: Patients and families facing a course of antibiotics in hospital, and clinicians deciding whether to recommend a probiotic.

Free.

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EUFIC — Microbiome testing: what it is, how it works and is it regulated? (Europe & global)

https://www.eufic.org/en/healthy-living/article/microbiome-testing-what-is-it-how-does-it-work-and-is-it-regulated

Free to read.

What It Does: A plain-language explainer, written with the EU-funded Human Microbiome Action project, on the at-home gut microbiome tests sold online: what they measure, why the same stool sample can get contradictory 'diversity' scores from different companies, why bacteria–disease links are correlations rather than causes, and why the tests sit in a regulatory grey area. Its verdict: for curiosity, not for diagnosing or treating anything.
Who It Helps: Anyone tempted by a consumer microbiome test or a supplement plan sold off the back of one, and clinicians who want a short page to share with patients.

Free to read.

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NIST — Evaluating the Analytical Performance of Direct-to-Consumer Gut Microbiome Tests (study, 2024)

https://www.nist.gov/publications/evaluating-analytical-performance-direct-consumer-gut-microbiome-testing-services

The NIST summary page is free; the full paper is in the journal Science (library access or purchase). Note: A research summary, not patient advice; the full article sits behind the journal's paywall.

What It Does: The US National Institute of Standards and Technology sent the same standardised stool material to seven commercial gut-microbiome testing services and compared what came back: results differed as much between companies as between different people, because of methodological variability and weak quality control. Published in Science (June 2024), it is the clearest independent evidence that consumer microbiome reports cannot yet be trusted to guide treatment.
Who It Helps: People weighing up a paid microbiome test, and anyone who wants the primary evidence behind the advice to be cautious.

The NIST summary page is free; the full paper is in the journal Science (library access or purchase). Note: A research summary, not patient advice; the full article sits behind the journal's paywall.

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Regulated Microbiome Therapies — FMT Programs, Guidance & Clinical Trial Registries

University of Birmingham — Microbiome Treatment Centre, MHRA-licensed FMT (United Kingdom)

https://www.birmingham.ac.uk/about/college-of-medicine-and-health/facilities/medicines-manufacturing-facility/microbiome-treatment-centre

Supplied to hospitals at £1,300 per 50 ml aliquot; NHS patients do not pay. Note: Requests must come from a consultant clinician, not patients; FMT for conditions other than C. difficile is available in the UK only through clinical trials.

What It Does: The UK's first MHRA-licensed facility producing faecal microbiota transplant (FMT) under Good Manufacturing Practice, set up in 2017 inside the University of Birmingham's Medicines Manufacturing Facility. It explains what FMT is, why UK guidelines recommend it only for recurrent or refractory C. difficile, how NHS consultants request it on a named-patient basis, current trials (such as STOP-Colitis for ulcerative colitis) and how to become a donor.
Who It Helps: UK patients with recurrent C. difficile who want to understand how their hospital obtains FMT, their consultants, and potential stool donors in the Birmingham area.

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NICE — FMT for recurrent C. difficile infection, guidance HTG638 (United Kingdom)

https://www.nice.org.uk/guidance/htg638

Free; NHS treatment is free at the point of care. Note: Written for health professionals and commissioners; it refers to related NICE guidance for the precise eligibility criteria rather than stating them on this page.

What It Does: The National Institute for Health and Care Excellence's evidence-based recommendation that FMT be offered on the NHS for recurrent C. difficile infection, migrated unchanged from Medical Technologies Guidance 71 and last reviewed in August 2022. Reading it tells you what you are entitled to ask your hospital team about, and why FMT is not recommended outside C. difficile except in research.
Who It Helps: UK patients and families dealing with repeated C. difficile episodes, and clinicians and commissioners implementing the pathway.

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TGA — Faecal microbiota transplant products: how they are regulated (Australia)

https://www.tga.gov.au/products/biologicals/faecal-microbiota-transplant-products/overview/faecal-microbiota-transplant-products-regulation

Free to read. Note: Written for manufacturers and clinicians rather than patients; it does not list which hospitals offer FMT.

What It Does: Australia's medicines regulator explains how FMT has been regulated since 1 July 2021: most products are Class 1 (made and used in the same hospital) or Class 2 (on the ARTG from a third-party supplier) biologicals, donors must be screened to Therapeutic Goods Order 105, and FMT cannot otherwise be supplied directly to the public. Essential context for anyone offered FMT outside a hospital or clinic.
Who It Helps: Australians and New Zealanders considering FMT for C. difficile (or being marketed it for anything else), plus gastroenterologists and hospital pharmacists.

Free to read. Note: Written for manufacturers and clinicians rather than patients; it does not list which hospitals offer FMT.

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WHO International Clinical Trials Registry Platform — ICTRP search portal (global)

https://www.who.int/tools/clinical-trials-registry-platform/the-ictrp-search-portal

Free. Note: Records are in English only and summarise each trial briefly — follow the link to the originating registry for contact details.

What It Does: The World Health Organization's single search point across the world's primary clinical trial registries (ANZCTR, ISRCTN, EU, Chinese, Indian, Japanese and others), so you can look up recruiting microbiome, FMT, probiotic or IBD trials in any country without checking each registry separately. Also the place to confirm that a “study” a clinic quotes is actually registered.
Who It Helps: Patients and families looking for a trial of FMT or microbiome therapies for IBD, IBS or C. difficile, and clinicians advising them.

Free. Note: Records are in English only and summarise each trial briefly — follow the link to the originating registry for contact details.

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ANZCTR — Australian New Zealand Clinical Trials Registry (Australia & New Zealand)

https://www.anzctr.org.au/default.aspx

Free to search.

What It Does: The public registry of clinical trials under way in Australia and New Zealand (and some elsewhere), with basic and advanced search. Each record lists the condition, eligibility criteria and a public contact you can approach, so people with IBD, IBS or C. difficile can find local FMT, diet or probiotic trials — and check that a trial they have been offered is registered.
Who It Helps: Australians and New Zealanders interested in joining gut-health research, and clinicians looking for referral options.

Free to search.

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IBS, IBD, Coeliac & Gut–Brain Disorders — Patient Organisations & Umbrella Federations

IFCCA (formerly EFCCA) — National Crohn's & colitis associations (global umbrella)

https://www.ifcca-ibd.org/members

Free. Note: Some entries show only an email or social-media page; the US foundation is not a member (it is listed separately in this directory).

What It Does: The International Federation of Crohn's & Ulcerative Colitis Associations — until recently the European federation EFCCA — lists its 51 national patient associations by region: 36 across Europe, eight in the Americas (Argentina, Brazil, Chile, Colombia, Costa Rica, Mexico, Trinidad & Tobago, Uruguay), Israel and Lebanon, and Australia, New Zealand, Singapore and Kazakhstan, with each association's website or contact.
Who It Helps: People with Crohn's disease or ulcerative colitis anywhere who want their national patient association, and those moving between countries.

Free. Note: Some entries show only an email or social-media page; the US foundation is not a member (it is listed separately in this directory).

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Crohn's & Colitis UK — Information about Crohn's and Colitis (United Kingdom)

https://www.crohnsandcolitis.org.uk/info-support/information-about-crohns-and-colitis

Free; optional membership from £15 a year.

What It Does: The UK's leading IBD charity's information hub: understanding Crohn's and colitis, symptoms, treatments, surgery, living with the conditions, work and education, benefits and finances, and supporting someone, plus downloadable booklets. The helpline (0300 222 5700, weekdays 10am–3pm, by phone, email or live chat) listens and signposts, and is clear that it is not medically trained.
Who It Helps: People in the UK with Crohn's or ulcerative colitis, parents of children with IBD, partners and employers.

Free; optional membership from £15 a year.

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IFFGD — International Foundation for Gastrointestinal Disorders (United States)

https://iffgd.org

Free. Note: Its Industry Council includes AbbVie, Ironwood, Pfizer, Takeda and others (disclosed on the site); provider and dietitian listings are self-submitted.

What It Does: Founded in 1991 by a patient, IFFGD publishes reviewed information on functional and motility disorders — IBS, functional dyspepsia, GERD, gastroparesis, constipation, incontinence — through its main site and sister sites such as aboutibs.org, with a publications library, videos, Spanish-language material, a dietitian listing and a provider-finder link, and it funds research and advocacy in Washington.
Who It Helps: People in the US (and English-speakers elsewhere) living with IBS or other disorders of gut–brain interaction, and families trying to understand them.

Free. Note: Its Industry Council includes AbbVie, Ironwood, Pfizer, Takeda and others (disclosed on the site); provider and dietitian listings are self-submitted.

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Guts UK — Information about digestive conditions and symptoms (United Kingdom)

https://gutscharity.org.uk/advice-and-information/

Free.

What It Does: Guts UK, the national charity for the digestive system (it grew out of the British Society of Gastroenterology), offers PIF TICK-accredited information on more than 40 conditions and symptoms across gut, liver and pancreas, a helpline (0300 102 4887) for guidance and signposting, printed leaflets for clinics, patient stories and a “Poo-Torial” tool. It is also one of the few UK charities funding research across all digestive conditions.
Who It Helps: Anyone in the UK with gut symptoms who wants trustworthy information before or after seeing a GP, including those with IBS, reflux, coeliac disease or IBD.

Free.

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Gastrointestinal Society (badgut.org) — Canada's digestive-health charity: information, helpline & groups (Canada)

https://badgut.org/

Free; donations optional.

What It Does: The Gastrointestinal Society, run with the Canadian Society of Intestinal Research, is Canada's charity for digestive health — 'all things gum to bum'. Its site holds a plain-English library on conditions from IBS and IBD to reflux, coeliac disease and C. difficile, the Inside Tract newsletter, patient surveys and free online support groups, with bilingual (English/French) material.
Who It Helps: Canadians with chronic digestive conditions and their families; much of the material is useful to any English-speaking reader.

Free; donations optional.

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Celiac Disease Foundation — Find a Healthcare Practitioner (United States)

https://celiac.org/about-celiac-disease/find-a-healthcare-practitioner/

Free to search; visits are paid or insured. Note: Practitioners submit their own listings; licence verification is drawn from state boards and the Foundation disclaims endorsement.

What It Does: A free US directory of physicians, dietitians, mental-health and allied-health professionals who treat coeliac disease, searchable by address within 25–100 miles, name and specialty (gastroenterology, paediatric gastroenterology, dietetics). The Foundation verifies that each listed practitioner holds a valid licence and marks those in a Celiac Disease Recognized Unit of Excellence or with documented coeliac continuing education.
Who It Helps: Americans with coeliac disease or suspected gluten-related disorders who need a clinician familiar with the condition, and parents of newly diagnosed children.

Free to search; visits are paid or insured. Note: Practitioners submit their own listings; licence verification is drawn from state boards and the Foundation disclaims endorsement.

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Coeliac Australia — Coeliac disease explained, fact sheets & helpline (Australia)

https://coeliac.org.au/learn/coeliac-disease/

Free information and helpline; membership is paid. Note: No dietitian finder or local support-group listing on the site — use Dietitians Australia for an APD; the charity also runs a paid food-endorsement and restaurant-accreditation programme.

What It Does: Australia's national coeliac charity explains the condition (“approximately 1 in 70 Australians have coeliac disease… only 20% are diagnosed”), why diagnosis must come before going gluten-free, and how it differs from non-coeliac gluten sensitivity and IBS, with multilingual fact sheets and a self-assessment quiz. The helpline (1300 458 836) and membership give ongoing support; its health-professionals hub covers testing and the gluten challenge.
Who It Helps: Australians (and New Zealanders using the material) with diagnosed or suspected coeliac disease, their families, and GPs wanting a testing pathway.

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Association of European Coeliac Societies (AOECS) — Member societies (Europe & affiliates)

https://www.aoecs.org/about-us/members/

Free. Note: A few societies list only a Facebook page; services and membership fees vary by country.

What It Does: The Association of European Coeliac Societies lists its 40 full member societies across Europe — from Ireland, the UK, France and Germany to Iceland, Malta and Ukraine — plus associate and affiliate members in Israel, Jordan, Turkey, Mexico and the United States, each with a website link. AOECS licenses the Crossed Grain gluten-free trademark and represents roughly 300,000 people with coeliac disease.
Who It Helps: People with coeliac disease living in or travelling to Europe who want the national society (and its gluten-free food lists) for a particular country.

Free. Note: A few societies list only a Facebook page; services and membership fees vary by country.

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Gut–Brain Axis — Psychogastroenterology & Research Centres

Rome Foundation — What is a Disorder of Gut–Brain Interaction? (global)

https://theromefoundation.org/what-is-a-disorder-of-gut-brain-interaction-dgbi/

Free.

What It Does: The Rome Foundation, which writes the diagnostic criteria for IBS and functional dyspepsia, explains why these conditions are now called disorders of gut–brain interaction rather than “functional” disorders, how gut motility, sensitivity, immune function, microbiota and brain processing interact, and links to its patient video library, the Bristol Stool Scale and the GastroPsych directory of specialist therapists.
Who It Helps: Anyone told they have IBS, functional dyspepsia or chronic constipation who wants to understand the diagnosis, and clinicians explaining it.

Free.

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Rome Foundation GastroPsych — Find a GI psychologist directory (global, mainly US)

https://romegipsych.org/

Free to search; therapy fees vary and may be insured. Note: Listing is by Rome GastroPsych membership rather than independent credential checks, and coverage outside North America is still thin.

What It Does: A searchable directory of psychologists and other mental-health clinicians trained in psychogastroenterology — the evidence-based brain–gut behaviour therapies for IBS and other disorders of gut–brain interaction — run by the Rome Foundation's GastroPsych section. Enter a city or postcode (with advanced options) to find members; about 70% hold doctoral psychology qualifications and roughly 20% practise outside the US.
Who It Helps: People with IBS, functional dyspepsia or IBD-related distress whose gastroenterologist has suggested psychological treatment, and GI clinicians building referral networks.

Free to search; therapy fees vary and may be insured. Note: Listing is by Rome GastroPsych membership rather than independent credential checks, and coverage outside North America is still thin.

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APC Microbiome Ireland — Education and Public Engagement (Ireland)

https://www.ucc.ie/en/apc/outreach/

Free.

What It Does: APC Microbiome Ireland, the Science Foundation Ireland research centre at University College Cork founded in 2003, is one of the world's leading groups on the microbiome–gut–brain axis. Its outreach page offers free public resources: the Microbe Magic website and Mind Your Microbes app for learning how diet, age and exercise change gut bacteria, World Microbiome Day events, IBD Insights patient articles and school programmes.
Who It Helps: Curious adults, teachers and students who want evidence-based microbiome education, and people with IBD interested in first-hand accounts and research news from Ireland.

Free.

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Peer Support & Communities — Living With a Gut Condition

Crohn's & Colitis UK — Find a Local Network (United Kingdom)

https://www.crohnsandcolitis.org.uk/info-support/find-a-local-network

Free; membership optional.

What It Does: Crohn's & Colitis UK's 47 volunteer-run Local Networks hold educational talks, social meet-ups and awareness events across England, Scotland, Wales and Northern Ireland. Search by postcode or browse by nation and region to find yours; the same page links the helpline (0300 222 5700) and the charity's virtual social events and online forum.
Who It Helps: People of any age living with Crohn's or ulcerative colitis in the UK, and family members who want to meet others locally.

Free; membership optional.

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Crohn's & Colitis Australia — Find a support group near you (Australia)

https://crohnsandcolitis.org.au/support-groups/

Free.

What It Does: Crohn's & Colitis Australia's locator for peer support groups: enter your location and a radius (10 to 500 km) to find facilitated meetings where everyone present, including the facilitator, is affected by Crohn's or colitis. Family, partners and loved ones are welcome; there is a separate young adult programme and an option to start a group where none exists. The IBD helpline is 1800 138 029.
Who It Helps: Australians with inflammatory bowel disease, their partners and parents, and people in regional areas who may need to start a group.

Free.

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Crohn's and Colitis Canada — Peer Support groups (Canada)

https://crohnsandcolitis.ca/support-for-you/peer-support

Free.

What It Does: Three free online peer support groups run by Crohn's and Colitis Canada: a monthly group for adults living with Crohn's or colitis, a Young Adult group (18–30) on the last Wednesday of each month, and a bimonthly Caregiver group for parents, partners and friends. Sign up through Crohn's and Colitis Connect or a registration form; the site also offers a Find My Community page for provincial chapters.
Who It Helps: Canadians with IBD at any stage, young adults wanting peers their own age, and caregivers in any province (sessions are online, so distance is no barrier).

Free.

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Coeliac UK — Local Groups (United Kingdom)

https://www.coeliac.org.uk/local-groups/

Free to attend; Coeliac UK membership (which includes the Food & Drink Guide) is paid.

What It Does: Coeliac UK's volunteer-run local groups — around 67 across England, Scotland, Wales, Northern Ireland and the Isle of Man — host coffee mornings, gluten-free food events and talks. Pick your region to see each group's page and contacts; the charity's community pages also offer one-to-one support from volunteers who have lived with coeliac disease themselves.
Who It Helps: Newly diagnosed adults and parents of coeliac children in the UK who want to meet others and swap practical gluten-free advice.

Free to attend; Coeliac UK membership (which includes the Food & Drink Guide) is paid.

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IFFGD — Support Groups for GI Conditions (United States & Canada)

https://iffgd.org/resources/patient-resources-organizations/support-groups-getting-the-help-you-need/

Free; a couple of listed organisations require membership. Note: A signposting list rather than IFFGD-run groups; check each group's current schedule as details change.

What It Does: IFFGD's curated list of in-person and online support groups for functional and motility gut disorders in the US and Canada — gastroparesis, cyclic vomiting, motility disorders, IBD, chronic pain and the GI Society's IBS and IBD Zoom groups — with practical advice to ask a community hospital or GI practice if nothing fits. IFFGD states it does not endorse the groups and asks you to use your own judgement.
Who It Helps: Americans and Canadians with IBS, gastroparesis or other disorders of gut–brain interaction who want peers, and clinicians signposting patients.

Free; a couple of listed organisations require membership. Note: A signposting list rather than IFFGD-run groups; check each group's current schedule as details change.

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Gastrointestinal Society (badgut.org) — Free Zoom support groups for IBD and IBS (Canada)

https://badgut.org/events/support-groups/

Free — “there is no charge to attend”.

What It Does: Free monthly Zoom support groups run by Canada's GI Society: an IBD group (Crohn's, ulcerative colitis, proctitis, microscopic colitis) on the third Wednesday at 7pm Pacific, and an IBS and Mental Health group on the last Thursday at 7pm Atlantic that welcomes anyone with a digestive condition, plus Facebook groups. Facilitators are not medical experts and the groups “supplement and do not replace medical care”.
Who It Helps: Canadians with IBD or IBS who want peer support without travelling; the Zoom format suits rural and remote areas, and sessions are open to the public.

Free — “there is no charge to attend”.

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Important Disclaimer

This directory is provided for educational and informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult with a qualified healthcare professional before making changes to your medication regimen or starting any new therapy.

This document does not guarantee the legitimacy, quality, or suitability of any business, organization, or practitioner listed within. The inclusion of any listing does not constitute an endorsement, recommendation, or verification of credentials. All organizations listed are independent entities over which the creators of this directory have no control or oversight.

This directory is intended to be used as a starting point and reference for the reader to conduct their own research, exercise their own judgment, and apply their own discretion before engaging with any listed organization or professional. Readers are strongly encouraged to independently verify credentials, read reviews, check licensing, and confirm current pricing and availability directly with each organization before committing to any services.

Costs, availability, contact details, and services may change at any time without notice. Information was accurate to the best of our knowledge at the time of publication.

About Notbroken.io: this directory and the accompanying Breathe, Calm, Sleep, Move, Eat, Track and Build tools were created by Nathan Leary, who runs and updates them. How each tool works, its safety notes, the privacy policy and terms of use are at notbroken.io/about, notbroken.io/privacy and notbroken.io/terms. The tools are general wellness aids, not medical devices, and Track is a personal journal that never gives medication advice.

If you are in crisis: Please contact your local emergency services immediately, or reach out to one of the following helplines:

International: Chapter 02 of this directory lists free helplines by situation and country; elsewhere use Find A Helpline — findahelpline.com
United States: 988 Suicide & Crisis Lifeline (call or text 988) • Crisis Text Line (text HOME to 741741)
United Kingdom: Samaritans — 116 123 (free, 24/7)
Canada: Talk Suicide Canada — 988 (call or text, 24/7)
Australia: Lifeline — 13 11 14 (24/7) • Beyond Blue — 1300 22 4636
New Zealand: Need to Talk? — 1737 (free, 24/7)
Europe: European Emergency Number — 112
India: iCall — 9152987821 • Vandrevala Foundation — 1860 2662 345
Singapore: Samaritans of Singapore — 1-767 (24/7)
Japan: TELL Lifeline — 03-5774-0992

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