Gut Health Resource Directory

289 resources: studies, practitioners, supplements, books, and tools.

• ACG Clinical Guideline: Management of IBS (2021, PubMed) — Evidence-based ACG guideline useful for distinguishing IBS symptom management from deeper organic drivers.
• ACG Clinical Guideline: Management of Irritable Bowel Syndrome (2021) — Authoritative ACG guideline covering diagnosis and treatment recommendations for IBS.
• Autoimmunity Functional Specialist Directory — Directory entry for practitioners specializing in autoimmunity interventions.
• Autoimmunity Protocol Stack — Educational framework for a autoimmunity support stack.
• Autoimmunity Testing Pathway — Options and interpretation pathway for autoimmunity testing.
• Autoimmunity: Clinical Evidence Review — Clinical evidence review and practical interpretation for autoimmunity protocols.
• Bile Acid Malabsorption Functional Specialist Directory — Directory entry for practitioners specializing in bile acid malabsorption interventions.
• Bile Acid Malabsorption Protocol Stack — Educational framework for a bile acid malabsorption support stack.
• Bile Acid Malabsorption Testing Pathway — Options and interpretation pathway for bile acid malabsorption testing.
• Bile Acid Malabsorption: Clinical Evidence Review — Clinical evidence review and practical interpretation for bile acid malabsorption protocols.
• Bile Flow Functional Specialist Directory — Directory entry for practitioners specializing in bile flow interventions.
• Bile Flow Protocol Stack — Educational framework for a bile flow support stack.
• Bile Flow Testing Pathway — Options and interpretation pathway for bile flow testing.
• Bile Flow: Clinical Evidence Review — Clinical evidence review and practical interpretation for bile flow protocols.
• BioCare (UK) - Practitioner & Partner Programme — UK supplement company with practitioner-oriented education and partner pathways.
• Biofilms Functional Specialist Directory — Directory entry for practitioners specializing in biofilms interventions.
• Biofilms Protocol Stack — Educational framework for a biofilms support stack.
• Biofilms Testing Pathway — Options and interpretation pathway for biofilms testing.
• Biofilms: Clinical Evidence Review — Clinical evidence review and practical interpretation for biofilms protocols.
• Biomesight (UK) - Practitioner Benefits & Referral Commissions — Biomesight UK microbiome testing platform with practitioner tools and published referral commissions.
• Bioregulators Functional Specialist Directory — Directory entry for practitioners specializing in bioregulators interventions.
• Bioregulators Protocol Stack — Educational framework for a bioregulators support stack.
• Bioregulators Testing Pathway — Options and interpretation pathway for bioregulators testing.
• Bioregulators: Clinical Evidence Review — Clinical evidence review and practical interpretation for bioregulators protocols.
• Bloating After Meals Functional Specialist Directory — Directory entry for practitioners specializing in bloating after meals interventions.
• Bloating After Meals Protocol Stack — Educational framework for a bloating after meals support stack.
• Bloating After Meals Testing Pathway — Options and interpretation pathway for bloating after meals testing.
• Bloating After Meals: Clinical Evidence Review — Clinical evidence review and practical interpretation for bloating after meals protocols.
• Bookshop.org - Affiliate Program (EU-friendly alternative) — Bookshop.org affiliate program page, supporting independent bookstores.
• Breath Testing Functional Specialist Directory — Directory entry for practitioners specializing in breath testing interventions.
• Breath Testing Protocol Stack — Educational framework for a breath testing support stack.
• Breath Testing Testing Pathway — Options and interpretation pathway for breath testing testing.
• Breath Testing: Clinical Evidence Review — Clinical evidence review and practical interpretation for breath testing protocols.
• British Dietetic Association: IBS & Low-FODMAP Resources — Evidence-informed UK dietetic resource coverage for IBS and low-FODMAP use.
• British Society of Gastroenterology Guidelines Hub — GI clinical guideline index useful for evidence-grounded protocol design.
• Butyrate Functional Specialist Directory — Directory entry for practitioners specializing in butyrate interventions.
• Butyrate Protocol Stack — Educational framework for a butyrate support stack.
• Butyrate Testing Pathway — Options and interpretation pathway for butyrate testing.
• Butyrate: Clinical Evidence Review — Clinical evidence review and practical interpretation for butyrate protocols.
• Calprotectin Functional Specialist Directory — Directory entry for practitioners specializing in calprotectin interventions.
• Calprotectin Protocol Stack — Educational framework for a calprotectin support stack.
• Calprotectin Testing Pathway — Options and interpretation pathway for calprotectin testing.
• Calprotectin: Clinical Evidence Review — Clinical evidence review and practical interpretation for calprotectin protocols.
• Candida Functional Specialist Directory — Directory entry for practitioners specializing in candida interventions.
• Candida Protocol Stack — Educational framework for a candida support stack.
• Candida Testing Pathway — Options and interpretation pathway for candida testing.
• Candida: Clinical Evidence Review — Clinical evidence review and practical interpretation for candida protocols.
• Cedars-Sinai Medical Center - Gut Health Research — Leading research institution focusing on gut microbiome, gut-brain axis, and digestive health.
• Celiac Disease Functional Specialist Directory — Directory entry for practitioners specializing in celiac disease interventions.
• Celiac Disease Protocol Stack — Educational framework for a celiac disease support stack.
• Celiac Disease Testing Pathway — Options and interpretation pathway for celiac disease testing.
• Celiac Disease: Clinical Evidence Review — Clinical evidence review and practical interpretation for celiac disease protocols.
• Coeliac UK - Clinical & Patient Resources — UK coeliac disease education and practical management resources.
• Constipation Functional Specialist Directory — Directory entry for practitioners specializing in constipation interventions.
• Constipation Protocol Stack — Educational framework for a constipation support stack.
• Constipation Testing Pathway — Options and interpretation pathway for constipation testing.
• Constipation: Clinical Evidence Review — Clinical evidence review and practical interpretation for constipation protocols.
• Crohn's Disease Functional Specialist Directory — Directory entry for practitioners specializing in crohn's disease interventions.
• Crohn's Disease Protocol Stack — Educational framework for a crohn's disease support stack.
• Crohn's Disease Testing Pathway — Options and interpretation pathway for crohn's disease testing.
• Crohn's Disease: Clinical Evidence Review — Clinical evidence review and practical interpretation for crohn's disease protocols.
• Cytoplan (UK) - Affiliate Programme — Cytoplan UK affiliate program details hosted on their site.
• DAO Enzyme — Diamine oxidase enzyme helps break down dietary histamine.
• DAO Supplementation for Histamine Intolerance — Oral DAO supplementation can significantly reduce histamine intolerance symptoms.
• Diarrhea Functional Specialist Directory — Directory entry for practitioners specializing in diarrhea interventions.
• Diarrhea Protocol Stack — Educational framework for a diarrhea support stack.
• Diarrhea Testing Pathway — Options and interpretation pathway for diarrhea testing.
• Diarrhea: Clinical Evidence Review — Clinical evidence review and practical interpretation for diarrhea protocols.
• Digestive Enzymes Functional Specialist Directory — Directory entry for practitioners specializing in digestive enzymes interventions.
• Digestive Enzymes Protocol Stack — Educational framework for a digestive enzymes support stack.
• Digestive Enzymes Testing Pathway — Options and interpretation pathway for digestive enzymes testing.
• Digestive Enzymes: Clinical Evidence Review — Clinical evidence review and practical interpretation for digestive enzymes protocols.
• Dr. Alexa Jimenez - Functional Gastroenterology — Functional gastroenterologist with expertise in treating SIBO, IBS, and other functional digestive disorders using root cause analysis.
• Dr. Chris Kresser - Naturopathic Medicine — Naturopathic physician specializing in herbal protocols, digestive wellness, and natural gut healing.
• Dr. G Data Comprehensive GI Panel — Advanced functional medicine lab testing including comprehensive microbiome analysis, pathogen screening, and digestive function assessment.
• Dr. Laura Sachs - Integrative GI — Board-certified integrative gastroenterologist specializing in complex GI disorders using evidence-based approaches.
• Dr. Michael Ruscio - Functional GI — Leading functional medicine expert focusing on autoimmune conditions, gut-brain axis disorders, and comprehensive gut health assessment.
• ECCO IBD Guidelines Resource Hub — European Crohn’s and Colitis Organisation guideline and consensus resources.
• EFSA Scientific Opinions (Nutrition & Gut-Relevant Topics) — European scientific opinions on nutrition and health claims relevant to gut protocols.
• Elemental Diet Functional Specialist Directory — Directory entry for practitioners specializing in elemental diet interventions.
• Elemental Diet Protocol Stack — Educational framework for a elemental diet support stack.
• Elemental Diet Testing Pathway — Options and interpretation pathway for elemental diet testing.
• Elemental Diet: Clinical Evidence Review — Clinical evidence review and practical interpretation for elemental diet protocols.
• Elimination Diets Functional Specialist Directory — Directory entry for practitioners specializing in elimination diets interventions.
• Elimination Diets Protocol Stack — Educational framework for a elimination diets support stack.
• Elimination Diets Testing Pathway — Options and interpretation pathway for elimination diets testing.
• Elimination Diets: Clinical Evidence Review — Clinical evidence review and practical interpretation for elimination diets protocols.
• Enteric Nervous System Functional Specialist Directory — Directory entry for practitioners specializing in enteric nervous system interventions.
• Enteric Nervous System Protocol Stack — Educational framework for a enteric nervous system support stack.
• Enteric Nervous System Testing Pathway — Options and interpretation pathway for enteric nervous system testing.
• Enteric Nervous System: Clinical Evidence Review — Clinical evidence review and practical interpretation for enteric nervous system protocols.
• ESCMID/ESPGHAN Microbiota Educational Resources — European microbiota-focused educational and scientific resources.
• ESPGHAN Position Papers and Clinical Guidance — European pediatric gastroenterology guidance relevant to gut and nutrition pathways.
• European Dyspepsia/Upper GI Guidance Reference — Upper GI management reference points from European society guidance pathways.
• Food Reintroductions Functional Specialist Directory — Directory entry for practitioners specializing in food reintroductions interventions.
• Food Reintroductions Protocol Stack — Educational framework for a food reintroductions support stack.
• Food Reintroductions Testing Pathway — Options and interpretation pathway for food reintroductions testing.
• Food Reintroductions: Clinical Evidence Review — Clinical evidence review and practical interpretation for food reintroductions protocols.
• Fructose Malabsorption Functional Specialist Directory — Directory entry for practitioners specializing in fructose malabsorption interventions.
• Fructose Malabsorption Protocol Stack — Educational framework for a fructose malabsorption support stack.
• Fructose Malabsorption Testing Pathway — Options and interpretation pathway for fructose malabsorption testing.
• Fructose Malabsorption: Clinical Evidence Review — Clinical evidence review and practical interpretation for fructose malabsorption protocols.
• Gallbladder Support Functional Specialist Directory — Directory entry for practitioners specializing in gallbladder support interventions.
• Gallbladder Support Protocol Stack — Educational framework for a gallbladder support support stack.
• Gallbladder Support Testing Pathway — Options and interpretation pathway for gallbladder support testing.
• Gallbladder Support: Clinical Evidence Review — Clinical evidence review and practical interpretation for gallbladder support protocols.
• Gastritis Functional Specialist Directory — Directory entry for practitioners specializing in gastritis interventions.
• Gastritis Protocol Stack — Educational framework for a gastritis support stack.
• Gastritis Testing Pathway — Options and interpretation pathway for gastritis testing.
• Gastritis: Clinical Evidence Review — Clinical evidence review and practical interpretation for gastritis protocols.
• GERD Functional Specialist Directory — Directory entry for practitioners specializing in gerd interventions.
• GERD Protocol Stack — Educational framework for a gerd support stack.
• GERD Testing Pathway — Options and interpretation pathway for gerd testing.
• GERD: Clinical Evidence Review — Clinical evidence review and practical interpretation for gerd protocols.
• GI Map Interpretation Functional Specialist Directory — Directory entry for practitioners specializing in gi map interpretation interventions.
• GI Map Interpretation Protocol Stack — Educational framework for a gi map interpretation support stack.
• GI Map Interpretation Testing Pathway — Options and interpretation pathway for gi map interpretation testing.
• GI Map Interpretation: Clinical Evidence Review — Clinical evidence review and practical interpretation for gi map interpretation protocols.
• Gut Bacteria & Neurotransmitters — Gut bacteria produce and modulate serotonin, dopamine, and GABA, linking the microbiome to brain function.
• Gut Motility Functional Specialist Directory — Directory entry for practitioners specializing in gut motility interventions.
• Gut Motility Protocol Stack — Educational framework for a gut motility support stack.
• Gut Motility Testing Pathway — Options and interpretation pathway for gut motility testing.
• Gut Motility: Clinical Evidence Review — Clinical evidence review and practical interpretation for gut motility protocols.
• Gut-Brain Axis Functional Specialist Directory — Directory entry for practitioners specializing in gut-brain axis interventions.
• Gut-Brain Axis Protocol Stack — Educational framework for a gut-brain axis support stack.
• Gut-Brain Axis Testing Pathway — Options and interpretation pathway for gut-brain axis testing.
• Gut-Brain Axis: Clinical Evidence Review — Clinical evidence review and practical interpretation for gut-brain axis protocols.
• H. Pylori Functional Specialist Directory — Directory entry for practitioners specializing in h. pylori interventions.
• H. Pylori Protocol Stack — Educational framework for a h. pylori support stack.
• H. Pylori Testing Pathway — Options and interpretation pathway for h. pylori testing.
• H. Pylori: Clinical Evidence Review — Clinical evidence review and practical interpretation for h. pylori protocols.
• Harvard T.H. Chan School of Public Health - Gut Microbiome Research — Harvard's Chan School investigates the gut microbiome, dietary impacts, and environmental factors affecting digestive health.
• Healthpath (UK) - Affiliate Partnerships for Gut Tests — Healthpath UK help page confirming affiliate partnerships for health-related sites.
• Histamine Intolerance Functional Specialist Directory — Directory entry for practitioners specializing in histamine intolerance interventions.
• Histamine Intolerance Protocol Stack — Educational framework for a histamine intolerance support stack.
• Histamine Intolerance Testing Pathway — Options and interpretation pathway for histamine intolerance testing.
• Histamine Intolerance: Clinical Evidence Review — Clinical evidence review and practical interpretation for histamine intolerance protocols.
• Human Microbiome Changes After PBM in Parkinson's (2022) — Retrospective human study reporting microbiome shifts after PBM in Parkinson’s disease.
• IBD Functional Specialist Directory — Directory entry for practitioners specializing in ibd interventions.
• IBD Protocol Stack — Educational framework for a ibd support stack.
• IBD Testing Pathway — Options and interpretation pathway for ibd testing.
• IBD: Clinical Evidence Review — Clinical evidence review and practical interpretation for ibd protocols.
• IBS Functional Specialist Directory — Directory entry for practitioners specializing in ibs interventions.
• IBS Protocol Stack — Educational framework for a ibs support stack.
• IBS Testing Pathway — Options and interpretation pathway for ibs testing.
• IBS: Clinical Evidence Review — Clinical evidence review and practical interpretation for ibs protocols.
• IFM Overview (EU-relevant functional medicine reference) — Functional medicine education and practitioner framework reference.
• Inflammation Functional Specialist Directory — Directory entry for practitioners specializing in inflammation interventions.
• Inflammation Protocol Stack — Educational framework for a inflammation support stack.
• Inflammation Testing Pathway — Options and interpretation pathway for inflammation testing.
• Inflammation: Clinical Evidence Review — Clinical evidence review and practical interpretation for inflammation protocols.
• Institute for Functional Medicine — Directory entry for certified functional medicine practitioners.
• L-Glutamine Powder (Pure) — Supports intestinal lining repair and tight junction integrity.
• LAB4MORE (DE/EU) - Functional & Microbiome Testing — European laboratory service offering functional and microbiome-related diagnostics.
• Lactose Intolerance Functional Specialist Directory — Directory entry for practitioners specializing in lactose intolerance interventions.
• Lactose Intolerance Protocol Stack — Educational framework for a lactose intolerance support stack.
• Lactose Intolerance Testing Pathway — Options and interpretation pathway for lactose intolerance testing.
• Lactose Intolerance: Clinical Evidence Review — Clinical evidence review and practical interpretation for lactose intolerance protocols.
• Leaky Gut Functional Specialist Directory — Directory entry for practitioners specializing in leaky gut interventions.
• Leaky Gut Protocol Stack — Educational framework for a leaky gut support stack.
• Leaky Gut Testing Pathway — Options and interpretation pathway for leaky gut testing.
• Leaky Gut: Clinical Evidence Review — Clinical evidence review and practical interpretation for leaky gut protocols.
• Low-Level Light Therapy in DSS Colitis (Mouse Study, 2014) — Mouse colitis study reporting low-level light therapy improved mucosal healing.
• Mast Cell Activation Functional Specialist Directory — Directory entry for practitioners specializing in mast cell activation interventions.
• Mast Cell Activation Protocol Stack — Educational framework for a mast cell activation support stack.
• Mast Cell Activation Testing Pathway — Options and interpretation pathway for mast cell activation testing.
• Mast Cell Activation: Clinical Evidence Review — Clinical evidence review and practical interpretation for mast cell activation protocols.
• Meta-analysis: Proton Pump Inhibitors and Risk of SIBO — Systematic review and meta-analysis evaluating PPI use and increased SIBO risk.
• Methylation Functional Specialist Directory — Directory entry for practitioners specializing in methylation interventions.
• Methylation Protocol Stack — Educational framework for a methylation support stack.
• Methylation Testing Pathway — Options and interpretation pathway for methylation testing.
• Methylation: Clinical Evidence Review — Clinical evidence review and practical interpretation for methylation protocols.
• Microbiome Functional Specialist Directory — Directory entry for practitioners specializing in microbiome interventions.
• Microbiome Protocol Stack — Educational framework for a microbiome support stack.
• Microbiome Testing Pathway — Options and interpretation pathway for microbiome testing.
• Microbiome: Clinical Evidence Review — Clinical evidence review and practical interpretation for microbiome protocols.
• Migrating Motor Complex Functional Specialist Directory — Directory entry for practitioners specializing in migrating motor complex interventions.
• Migrating Motor Complex Protocol Stack — Educational framework for a migrating motor complex support stack.
• Migrating Motor Complex Testing Pathway — Options and interpretation pathway for migrating motor complex testing.
• Migrating Motor Complex: Clinical Evidence Review — Clinical evidence review and practical interpretation for migrating motor complex protocols.
• MIT Microbiome Interaction Group — MIT researchers study the chemical and physical interactions between gut microbes and their human hosts.
• Monash FODMAP App & Resources — Evidence-based FODMAP resources and app for IBS dietary implementation.
• Monash FODMAP: Low FODMAP Diet Learning Hub — Monash University educational hub for evidence-based Low FODMAP implementation and reintroduction.
• Monash University FODMAP Diet — Official resource for the Low FODMAP diet used to manage IBS.
• Motility Functional Specialist Directory — Directory entry for practitioners specializing in motility interventions.
• Motility Protocol Stack — Educational framework for a motility support stack.
• Motility Testing Pathway — Options and interpretation pathway for motility testing.
• Motility: Clinical Evidence Review — Clinical evidence review and practical interpretation for motility protocols.
• NHS Coeliac Disease Overview — UK NHS overview of coeliac symptoms, diagnosis, and management.
• NHS IBS Overview and Self-Care Guidance — UK NHS patient guidance for IBS symptoms, triggers, and support pathways.
• NICE Crohn’s Disease Guideline — UK NICE guideline reference for Crohn’s diagnosis and management.
• NICE Guidance: Irritable Bowel Syndrome in Adults — UK NICE guideline reference for IBS diagnosis and management pathways.
• NICE Guideline CG61: Irritable Bowel Syndrome in Adults — UK evidence-based guideline for IBS assessment and management in primary and specialist care.
• NICE Ulcerative Colitis Guideline — UK NICE guideline reference for ulcerative colitis management.
• NIDDK: Irritable Bowel Syndrome (IBS) — NIH NIDDK patient resource on IBS symptoms, causes, diagnosis, and treatment.
• NIH Office of Dietary Supplements: Probiotics Fact Sheet — Evidence-based fact sheet for clinicians on probiotic strains, evidence quality, and safety.
• NIH/NCBI Bookshelf: Bacterial Biofilms Overview — Foundational scientific review of biofilm formation and persistence mechanisms.
• Non-Celiac Gluten Sensitivity Functional Specialist Directory — Directory entry for practitioners specializing in non-celiac gluten sensitivity interventions.
• Non-Celiac Gluten Sensitivity Protocol Stack — Educational framework for a non-celiac gluten sensitivity support stack.
• Non-Celiac Gluten Sensitivity Testing Pathway — Options and interpretation pathway for non-celiac gluten sensitivity testing.
• Non-Celiac Gluten Sensitivity: Clinical Evidence Review — Clinical evidence review and practical interpretation for non-celiac gluten sensitivity protocols.
• Nordic Laboratories (EU/UK) - Functional Testing Provider — Nordic Laboratories EU/UK provider of functional GI testing and diagnostics.
• Optibac Probiotics (UK) - Official Affiliate Programme — Optibac UK affiliate program page with program terms and cookie details.
• Oxalate Sensitivity Functional Specialist Directory — Directory entry for practitioners specializing in oxalate sensitivity interventions.
• Oxalate Sensitivity Protocol Stack — Educational framework for a oxalate sensitivity support stack.
• Oxalate Sensitivity Testing Pathway — Options and interpretation pathway for oxalate sensitivity testing.
• Oxalate Sensitivity: Clinical Evidence Review — Clinical evidence review and practical interpretation for oxalate sensitivity protocols.
• Pancreatic Insufficiency Functional Specialist Directory — Directory entry for practitioners specializing in pancreatic insufficiency interventions.
• Pancreatic Insufficiency Protocol Stack — Educational framework for a pancreatic insufficiency support stack.
• Pancreatic Insufficiency Testing Pathway — Options and interpretation pathway for pancreatic insufficiency testing.
• Pancreatic Insufficiency: Clinical Evidence Review — Clinical evidence review and practical interpretation for pancreatic insufficiency protocols.
• PARADYM Nattokinase — Nattokinase is a soy-free enzyme that supports digestive health, nutrient absorption, and immune function.
• PARADYM Taurine — Taurine supports bile acid conjugation, toxin clearance, and mitochondrial function. Important for SIBO, gallbladder issues, and mast cell activation.
• PARADYM Zinc Carnosine — Proven gut healing compound that binds to damaged gut lining and stimulates regeneration. Repairs tight junctions directly.
• Peptides Functional Specialist Directory — Directory entry for practitioners specializing in peptides interventions.
• Peptides Protocol Stack — Educational framework for a peptides support stack.
• Peptides Testing Pathway — Options and interpretation pathway for peptides testing.
• Peptides: Clinical Evidence Review — Clinical evidence review and practical interpretation for peptides protocols.
• Photobiomics Review: Can Light Alter the Microbiome? — Review of evidence on how light exposure, including PBM, may influence the microbiome.
• Photobiomodulation for Bowel Disease: Critical Review (2024) — Critical review of PBM evidence for bowel disease, including key limits in human data.