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.
Acid Reflux & GERD: A Complete Treatment Guide (2026)
Best At-Home Gut Tests of 2026: Viome vs Zoe vs Thorne
Best Digestive Enzymes of 2026: Evidence-Based Picks
Best Fiber Supplements of 2026: What the Evidence Says
Best Probiotics for IBS in 2026: Evidence-Based Rankings
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.
Guides & deep dives
Deep dives on individual treatments — probiotics, digestive enzymes, fiber supplements, low-FODMAP protocols, and more.
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 the exact commission we earn from each disclosed.
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 show you exactly what we earn on every recommendation 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 tests range from microbiome sequencing to breath-based food-intolerance testing. We compare the four best-known so you can pick the right one — or skip it.