Log the meal
Photo or text. "Latte and croissant" is enough.
The NHS suggests keeping a diary of what you eat to work out which foods trigger IBS symptoms, and its food intolerance page says symptoms usually come a few hours after eating the food. Both points are easy to agree with and hard to do on a Tuesday afternoon.
PoopAI cuts the diary down to what you can keep up: a photo or a few words per meal, a tap per poop. The tags and the timing do the rest.
Photo or text. "Latte and croissant" is enough.
PoopAI tags likely suspects such as dairy, gluten, FODMAPs and caffeine.
Tap a Bristol type, with an optional photo.
Weekly reports and trend charts show which tags came before changes.
Photograph your plate or type "toast, peanut butter, coffee". Both count.
Meals get tagged for common suspects like dairy, gluten, FODMAPs and caffeine, and more.
See how your food and your poop line up over the week. Yours, not an average person's.
| Tag | Why people watch it | Read more |
|---|---|---|
| Dairy | The NHS says lactose intolerance causes symptoms such as tummy pain after foods containing lactose | Food intolerance |
| Gluten | Gluten triggers coeliac disease; get tested before cutting it out (NHS) | Coeliac disease or IBS? |
| FODMAPs | Carbohydrates that can trigger IBS symptoms; Monash runs the low FODMAP diet | Low FODMAP tracker |
| Caffeine | NHS IBS advice: no more than 3 cups of tea, coffee or other caffeinated drinks a day | Foods for digestion |
| And more | Tags cover other common suspects too |
The NHS says food intolerance symptoms usually start a few hours after eating and can last hours or days. So look across the same day and the next, not just the next poop. Our guide on how long food takes to affect poop goes further.
Mon 08:00 Meal: latte, croissant tags: dairy, gluten, caffeine Mon 11:20 Poop: type 6 Tue 08:00 Meal: black coffee, banana tags: caffeine Tue 09:40 Poop: type 4 Wed 08:00 Meal: latte, toast tags: dairy, gluten, caffeine Wed 11:05 Poop: type 6 Paper note: try oat milk next week
| You log in PoopAI | PoopAI doesn't log |
|---|---|
| Each poop as a Bristol type, 1 to 7, with an optional photo | Symptoms such as pain or bloating |
| Meals by photo or text | Mood, stress or sleep |
| Trigger tags such as dairy, gluten, FODMAPs and caffeine | Fluids, medicines or periods |
| Times, so meals and poops line up | FODMAP amounts or grams |
Fewer fields is a choice: it keeps each log to a few seconds. If you want to remember a sore tummy or a stressful day, jot a paper note next to the date.
No. It tags meals and lines them up with your Bristol types so you can spot possible patterns. A GP or dietitian can help confirm them.
Common suspects such as dairy, gluten, FODMAPs and caffeine, and more.
Yes. Meals can be logged by photo or text.
No. Use the Monash University FODMAP app for food ratings.
Most people need two to four weeks of steady logs. One bad day proves very little.
Not before talking to a GP. The NHS says keep eating gluten until coeliac tests are done so results are accurate.
No. PoopAI is a diary, not a medical device. It helps you notice patterns and show them to a doctor or dietitian, who can diagnose.
Last reviewed 2026-11-04
FixMyGut is not affiliated with or endorsed by the NHS, NIH, NICE, Mayo Clinic or Monash University.
FixMyGut and PoopAI are for general education and personal tracking only. Not medical advice. If something feels wrong, talk to a doctor.