StoolSense

Triggers & intolerances

These guides share tagging tips, cross-links to personas, and gentle experiments. They keep the language cautious and transparent.

Start with a question

Pick the question that matches what you’re seeing.

Why am I suddenly lactose intolerant?

The “sudden” part often has a reason. Look for dose, timing, and trigger stacking.

Read the guide

Lactose intolerance test

Breath test vs a clean 7-day check you can run at home.

See how to test

How do I find my trigger foods?

A simple 7-day method that avoids cutting everything at once.

See the method

What foods change stool consistency?

10 common “usual suspects,” plus how to test one lever at a time.

Read the guide

What are the signs of gluten intolerance?

Common symptoms people attribute to gluten, plus what else can look similar.

Read the guide

How to test for gluten intolerance

A careful way to test a gluten/wheat hypothesis without changing everything at once.

See how to test

Common triggers

Short, practical guides you can test week-to-week.

Caffeine

Track espresso timing, second cups, and Type 6 days after early caffeine hits.

Read the caffeine guide

Sweeteners & polyols

Sugar-free isn’t always gut-free. Stacks can act like laxatives for some people.

Read the sweeteners guide

Poop pattern decoder

The fastest way to get unstuck is to track one variable and watch the timing window.

  • • Timing window: 0–4h vs 4–12h vs next morning
  • • Bristol type + urgency (especially morning patterns)
  • • Confounders: caffeine timing, polyols, alcohol, sleep, stress