Microbiome & Digestion
Understand gut microbes, fibre, fermented foods, digestive symptoms and the limits of personalised microbiome testing.
Microbiome research connects food, microbial activity and human biology. The useful questions are specific: what was measured, who was studied, and does a finding help explain a symptom or support a practical decision? Follow these reading paths before making a product choice.
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Three starting points, each opening a different part of the subject.
Short-Chain Fatty Acids: What the Microbiome Makes, and What We Still Cannot Promise
Explore microbial metabolites and the distinction between a plausible mechanism and a demonstrated benefit.
Start reading →Fermented Foods and Probiotic Supplements: Two Different Decisions
Compare two different decisions: adding a fermented food and choosing a particular supplement.
Start reading →Microbiome Stool Tests: What a Detailed Report Can Actually Tell You
Learn what a detailed microbial report can tell you, and what still requires clinical interpretation.
Start reading →The microbiome & digestion collection
Faecal Calprotectin: An Inflammation Signal Needs a Clinical Question
Author health analysisA stool inflammation marker can help with bowel assessment and IBD monitoring, but its meaning changes with the question, symptoms and previous findings.
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SIBO Breath Tests: What an Early Gas Rise Can—and Cannot—Explain
Author health analysisBreath testing measures gases, not a complete map of the small bowel. Learn why preparation, transit and the clinical setting shape interpretation.
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The Gut Microbiome and Melanoma Immunotherapy: What Early Trials Show
Author health analysisEarly melanoma trials suggest a meaningful microbiome connection. They do not justify unsupervised probiotics, donor stool or changes to oncology treatment.
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Coeliac Disease Testing: Why the Diet Change Should Wait
Evidence-informed health guideLearn why starting a gluten-free diet can complicate coeliac testing, how blood tests and biopsy fit together, and what to discuss before changing food.
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Dyspepsia and H. pylori: Make the Test Answer the Right Question
Evidence-informed health guideUnderstand upper-abdominal discomfort, reflux and H. pylori testing, including why medicine preparation and confirmation of eradication matter.
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Bile Acid Diarrhoea: A Specific Question Behind Persistent Watery Stools
Evidence-informed health guideExplore bile acid diarrhoea, why symptoms alone do not identify it, which tests may help, and how treatment review differs from a generic gut supplement.
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Diverticular Disease: Why Nuts and Seeds Are Not the Default Enemy
Evidence-informed health guideSeparate diverticulosis from diverticulitis, understand the evidence behind nuts and seeds, and build a sensible long-term eating plan after assessment.
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Resistant Starch: Why the Same Food Can Produce Different Gut Responses
Evidence-informed health guideUnderstand resistant starch, microbial cross-feeding and individual responses, with practical ways to change food habits without chasing a butyrate score.
Read the article →Microbiome Stool Tests: What a Detailed Report Can Actually Tell You
Evidence-informed health guideLearn how microbiome profiling differs from diagnostic stool testing, why reference ranges are difficult, and what to ask before paying for a test.
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Short-Chain Fatty Acids: What the Microbiome Makes, and What We Still Cannot Promise
Author health analysisExplore acetate, propionate and butyrate, why dietary responses vary, and how to separate microbiome mechanisms from claims about products and personalised treatment.
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Fermented Foods and Probiotic Supplements: Two Different Decisions
Author health analysisUnderstand the differences between fermented foods and strain-specific probiotics, how to read evidence, and how to make a useful food or supplement decision.
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The Gut–Brain Axis and the Vagus Nerve: Communication Is Not Control
Author health analysisExplore how the gut and brain communicate, what vagus-nerve research shows, and why a plausible mechanism is not proof of a treatment.
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How IBS Is Diagnosed: Symptoms, Targeted Tests and Warning Signs
Evidence-informed health guideIBS is assessed through a recognisable symptom pattern and targeted investigation. Learn what to record, what tests can clarify and which changes need review.
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Constipation and Fibre: Why Type and Pace Matter
Evidence-informed health guideAdding more fibre is not always a simple solution. Understand gradual changes, hydration, symptom tracking and when constipation needs assessment.
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Lactose Intolerance: Keeping Nutrition Without Guesswork
Evidence-informed health guideLearn the difference between lactose intolerance and milk allergy, how assessment works, and how to reduce symptoms without unnecessary dietary restriction.
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Diarrhoea After Antibiotics: What to Watch and When to Seek Care
Evidence-informed health guideUnderstand antibiotic-associated diarrhoea, dehydration and C. difficile warning signs, with practical advice on medication review and infection prevention.
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The Microbiome and the Intelligence of Bacteria – The Forgotten Organ of Healing
Author perspective / archive🦠 The Microbiome and the Intelligence of Bacteria – The Forgotten Organ of Healing By Gabriel Nicolaev – CyGuru | Founder of Medicinas & Nicolaev Medicine 🔹 Introduction For many years, science taught us that…
Read the article →Keep the strength of the evidence in view.
Clinical findings, emerging research and named author frameworks answer different questions. Read the references and medical notes in each article. Books and commercial product links are separate from evidence of clinical effectiveness. Our editorial approach →
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Related author perspectives, selected from the official bookstore. A reading link is not a clinical recommendation.
Read the label. Ask the right questions.
No specific supplement is selected for this collection. Digestive symptoms and probiotic choices require more context than a broad microbiome label. Browse official product information without treating a catalogue match as a diagnosis.
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