Gut Check 🕵️
Tick what you ate and what you are feeling. This looks for well-documented patterns and tells you what is worth asking a doctor about. It cannot diagnose you, and it will not pretend otherwise.
- 1Tick everything you ate in the last few hours. Your picks are kept when you change filter.
- 2Tick how you feel. The three red-bordered options are emergencies and behave differently.
- 3Press the button. “No pattern” is a real answer, not a failure — plenty of bloating is nothing to do with food.
🍽️ What did you eat recently?
Pick everything from the last few hours.
😖 And how are you feeling?
Tick anything that applies.
Before you cut anything out 🛑
Get tested for coeliac disease before you stop eating gluten, not after. The blood test looks for antibodies your body only makes while gluten is in your diet, so removing it first can produce a false negative and cost you a clear answer.
A low-FODMAP diet is a diagnostic trial, not a lifestyle. It is designed to be run for a few weeks with a dietitian and then systematically reversed to find your actual triggers. Staying on it long-term restricts your diet and starves gut bacteria you want to keep.
Intolerance and allergy are different things. An intolerance is a digestive problem and usually depends on how much you ate. An allergy involves the immune system, can fire on a tiny amount, and can get worse each time. If you suspect an allergy, that is a doctor conversation and not an experiment to run on yourself.
Questions people actually ask
Can this tool diagnose a food intolerance?
No. It matches what you ate against well-documented patterns and nothing more. Confirming an intolerance needs a clinician, and in the case of coeliac disease it needs a blood test taken while you are still eating gluten.
Should I cut gluten out to see if it helps?
Not before being tested. Removing gluten first can make coeliac testing come back falsely negative, so the order matters: get tested while still eating it, then change your diet based on the result.
What is the difference between a food intolerance and a food allergy?
An intolerance is a digestive problem, usually dose-dependent and uncomfortable rather than dangerous. An allergy involves the immune system, can be triggered by tiny amounts, and can escalate to anaphylaxis. Swelling of the face or throat, spreading hives or difficulty breathing after eating is a medical emergency.
Sources & references 📚
Each pattern this page can surface is backed by one of the following. These are specific to intolerance, allergy and gut symptoms — not a generic health block reused from elsewhere on the site.
- NHS — Lactose intolerance — symptoms, timing and how it is actually diagnosed
- Monash University — About FODMAPs and IBS — the research group that defined FODMAPs, and why the diet is a supervised trial rather than a lifestyle
- Coeliac UK — Getting diagnosed — why you must keep eating gluten until testing is complete
- NICE NG20 — When you should be tested for coeliac disease — the UK clinical guideline behind that advice
- NHS — Anaphylaxis — the emergency symptoms this page refuses to make light of
Curious about the chemistry rather than the symptoms? Mix two foods → Or watch one travel through your gut → · Back to the hub