Understand your IBS
Clear, sourced guides to IBS and the low-FODMAP diet — written for people living with it, checked against clinical guidelines.
What Is IBS? Symptoms, Causes, Diagnosis and Treatment
IBS is a common gut-brain disorder causing recurring belly pain with diarrhea, constipation, or both. Learn the symptoms, Rome IV criteria, subtypes and causes.
The low-FODMAP diet for IBS: what it is, what to eat, and whether it works
The low FODMAP diet relieves IBS symptoms for many people. Learn what FODMAPs are, which foods are high and low, how the 3 phases work, and what studies show.
IBS trigger foods: the usual suspects and how to find your own
Common IBS trigger foods include high-FODMAP foods, fatty meals, coffee, alcohol, spicy food and fizzy drinks. See the evidence and how to find your triggers.
Why garlic and onion trigger IBS, and what to use instead
Garlic and onion trigger IBS because they're rich in fructans. See where they hide, low-FODMAP swaps like garlic-infused oil, and how fructans relate to gluten.
FODMAP reintroduction: how to find out which FODMAPs you can eat
FODMAP reintroduction tests one FODMAP group at a time over 3 days with increasing amounts. Learn the steps, test foods, washout days and how to read results.
How to keep an IBS food and symptom diary that actually reveals your triggers
An IBS food and symptom diary reveals triggers when it logs portions, timing, symptoms, stool form, sleep, stress and cycle. Here's how to keep and read one.
IBS Red Flags: When to See a Doctor
IBS red flags include blood in stool, weight loss, anemia, fever and night symptoms. Learn when to see a doctor and which tests rule out other gut conditions.
IBS vs IBD: What's the Difference?
IBS vs IBD: Crohn's disease and ulcerative colitis inflame and can damage the bowel; IBS doesn't. Compare causes, symptoms, tests, treatment, celiac and SIBO.
Bristol Stool Chart: The 7 Types and What They Mean
The Bristol stool chart sorts stool into 7 types, from hard lumps to watery. Learn what each type says about gut transit, IBS subtypes, and how to log it.
IBS-SSS: The IBS Symptom Severity Score Explained
The IBS Symptom Severity Score (IBS-SSS) rates IBS from 0 to 500. Learn the five items, severity cut-offs, what a 50-point change means, and how to track it.
IBS questions, answered
Short, sourced answers to the questions people ask most about IBS and the low-FODMAP diet.
What the research says
A plain-language digest of the key studies and guidelines behind IBS diet care.
AI tools for IBS
What AI can and can’t do for IBS, how to choose a tool, and how IBS Clue works.