Lactoferrin: Clinical Evidence, Dosing, and Immune Benefits
A physician's guide to lactoferrin—how this iron-binding glycoprotein modulates immunity, supports gut barrier integrity, and may benefit chronic illness patients.
Supplements
Gut Health
2 articles on Gut Health by Julian Douwes, M.D.: Butyrate Supplement Guide: Gut Permeability, Immunity, and SCFA Therapy; and more.
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Butyrate Supplement Guide: Gut Permeability, Immunity, and SCFA Therapy
A physician's clinical guide to butyrate supplements: mechanisms, evidence for gut permeability and immunity, dosage protocols, and which patients benefit most.
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L-Glutamine for Gut Health: Leaky Gut, Mucosal Repair, and Clinical Dosing
L-glutamine is the intestinal lining's primary fuel source. Explore the clinical evidence for leaky gut, Lyme dysbiosis, post-COVID recovery, and optimal dosing protocols.
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Akkermansia muciniphila: The Gut Barrier Strain Your Longevity Protocol Is Missing
Akkermansia muciniphila strengthens gut barrier integrity, improves metabolic markers, and predicts immunotherapy response. A clinical review of supplementation evidence.
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SIBO Treatment Protocol: A Functional Medicine Approach to Small Intestinal Bacterial Overgrowth
Clinical guide to diagnosing and treating SIBO with functional medicine — breath testing, rifaximin vs herbal antimicrobials, diet, and relapse prevention.
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Gut-Brain Axis: How Healing Your Gut Can Transform Brain and Mood Health
The bidirectional gut-brain axis governs mood, cognition, and immune balance. Dr. Julian Douwes explains the science and integrative protocols for restoring this critical communication pathway.
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Best Probiotic Strains by Condition: IBS, Bloating, Immunity, and Mood
Physician guide to evidence-based probiotic strain selection. Which specific strains work for IBS, bloating, immunity, mood, and vaginal health, with dosing and evidence grades.
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How to Choose a Probiotic: CFU Count, Strains, and What Actually Matters
Physician guide to choosing a probiotic supplement. CFU count myths, strain identification, delivery mechanisms, third-party testing, and what the label should tell you.
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Probiotics vs. Prebiotics vs. Postbiotics: What the Difference Means for Your Gut
Physician guide to probiotics, prebiotics, postbiotics, and synbiotics. Definitions, mechanisms, when to use each, and how they work together for gut health.
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GI-MAP vs Standard Stool Culture: Which Test to Choose
Comparing GI-MAP qPCR stool testing with standard stool culture. Detection rates, pathogen coverage, clinical utility, and when each test is the right choice.
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How to Read Your Microbiome Test Results
Practical guide to interpreting gut microbiome test results. Dysbiosis markers, keystone species, diversity metrics, and what your results actually mean for treatment.
