Improve Gut Health

Evidence-based gut health articles, resources, and practical protocols.

Latest articles

• The Improving Gut Health Editorial Team (2026-10-19) — Meet the editorial byline behind improveguthealth.org — a pen name for a process, not a single person. How articles are researched, written, and reviewed.
• Antibiotic Resistance and Microbiome Diversity (2026-10-14) — What repeated antibiotic courses do to your gut microbiome long-term, how antibiotic resistance spreads through the gut, and how to preserve diversity.
• Best Probiotic Strains to Take During and After Antibiotics (2026-10-13) — The strain-by-strain guide to taking probiotics with a course of antibiotics — which strains to take, when, and for how long after.
• Constipation and the Vagus Nerve: The Missing Link (2026-10-12) — Why chronic constipation keeps re-triggering vasovagal episodes — and how to break the cycle by working with the vagus nerve, not against it.
• Defecation Straining: How to Prevent Dizziness and Fainting (2026-10-11) — Positioning, breathing technique, and the hydration-and-fiber protocol that stops the straining that triggers vasovagal episodes on the toilet.
• Erythritol vs Xylitol: Gut Tolerance Compared (2026-10-10) — Both are low-calorie sweeteners, but erythritol is far better tolerated by sensitive guts. Here's the head-to-head, plus what to try if erythritol bothers you.
• Foods That Feed Recovered Gut Flora: A Meal Plan (2026-10-09) — The 30-plant-foods-per-week protocol plus daily fermented foods, with a 7-day sample menu for the gut-recovery phase.
• GLP-1 and SIBO: The Mechanism Explained (2026-10-08) — Why slowed motility from GLP-1 drugs creates the conditions for small intestinal bacterial overgrowth — and who is most at risk.
• GLP-1 and Your Microbiome: What Actually Changes (2026-10-07) — How semaglutide, tirzepatide, and other GLP-1 agonists shift the gut microbiome, what the research actually shows, and what it means for long-term users.
• GLP-1 Receptor Agonists and Gut Health: The Complete Guide (2026-10-06) — Ozempic, Mounjaro, Wegovy, Zepbound — how GLP-1 drugs affect the gut, why they cause SIBO, bloating, and constipation, and what to do about each side effect.