Gut guides

General information, not health advice. Talk to your doctor or dietitian about your own symptoms.

Five short guides, each with its sources. Last updated 2026-10-31.

• Poop color

  Most color changes trace back to food or a medicine. A few colors should never be waited out.

  Read the guide →

• Trigger foods

  What a food and symptom diary is, and why it is something to bring to your doctor or dietitian.

  Read the guide →

• Low FODMAP reintroduction

  What reintroduction is for, and why it is done with a dietitian.

  Read the guide →

• IBS vs food intolerance

  They can feel the same. They are not the same thing, and a doctor is the one who sorts it out.

  Read the guide →

• Bristol stool chart

  Seven types, one scale. Here it is as simple diagrams, no photos.

  Read the guide →

Want to keep your own record to bring to your doctor or dietitian? Gutrude is on the App Store.