Stop guessing.
Find out what's
causing your gut issues.
Answer 2 questions and get evidence-based treatment recommendations tailored to your specific gut type.
How long until you see results?
Hover or tap any treatment to learn more
Digestive Enzymes
Days–2 weeks
Fiber Supplements
1–2 weeks
Probiotics
2–4 weeks
Low-FODMAP Diet
2–6 weeks
Gut Microbiome Testing + Plan
1–3 months
Results vary by individual. Timelines represent typical clinical response ranges, not guarantees.
Evidence-Based Guides
Every article is evidence-based and cited, updated regularly. No fluff, no filler — just what the research says.
SIBO Diagnosis and Treatment: Symptoms, Breath Tests, Relapse
Best Supplements for Bloating in 2026, Ranked by Evidence
How to Fix Bloating: What Actually Works in 2026
At-Home Colon Cancer Screening Tests (FIT Kits): 2026 Guide
Best At-Home Gut Health Test Kits of 2026: 3 Compared, 3 to Skip
Emerging Gut Health Treatments: What's in Clinical Trials
Start with your situation
Gut issues have different causes, and the right treatment depends on which one you have. Pick the path that fits — or take the quiz if you're not sure where to begin.
IBS treatments
Irritable bowel syndrome — the most common chronic gut condition. Low-FODMAP diet, targeted supplements, and the evidence behind each.
Bloating & gas
Why your gut produces excess gas, when it's diet versus dysbiosis, and which supplements actually have evidence behind them.
Symptom & condition guides
Deep-dive guides for acid reflux, constipation, bloating, and IBS — root causes, what actually works, and the evidence behind each.
Product reviews & rankings
The best probiotics, digestive enzymes, fiber supplements, and gut tests — ranked by clinical evidence and value.
Head-to-head comparisons
Seed vs Ritual, best probiotics vs best probiotics for IBS — what the evidence says when products go head to head.
Gut testing reviews
Honest reviews of Viome and other at-home microbiome tests — pricing, accuracy, and what they can and can't tell you.
Why rx-digestion
The gut health category is full of pseudoscience, oversold supplements, and affiliate sites that quietly rank products by how much commission they pay. We built rx-digestion to do the opposite: rank treatments by the strength of the clinical evidence, and disclose exactly what we earn so you can judge for yourself.
Our clinical claims are sourced to peer-reviewed research, randomized controlled trials, and FDA labeling — not marketing copy. When the evidence is strong, we say so. When it's weak or mixed, we say that too, rather than overselling a treatment to earn a click. We sell no products of our own and accept no payment for placement, so the rankings reflect the science, not the payout. See exactly how we score products and what we earn.
Not sure where to start? Take the 60-second quiz to identify your most likely gut type and get evidence-based treatment options matched to it.
Gut Testing
Curious what's actually going on in your gut?
At-home gut microbiome tests use very different lab methods, and none of them diagnose disease. We compare three of the best-known so you can pick the right one — or skip it.