Log every meal. Log how you felt. The suspected-triggers analysis (Pro) looks across the hours and days before each reaction and surfaces ingredients that keep recurring. Lactose, wheat, FODMAPs, eggs, soy, histamine: we surface whatever the data points at. You take it to your GP or dietitian for the diagnosis.
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These are the categories the NHS and the British Dietetic Association point at when someone walks in with vague "food doesn't agree with me" symptoms. The diary is what they ask you to keep first.
Bloating, wind, looseness 30 minutes to a couple of hours after dairy. About 1 in 20 white-British adults; more in other populations.
Milk, soft cheese, yoghurt, ice cream
Non-coeliac gluten sensitivity sits separately from coeliac disease. Coeliac needs a blood test plus biopsy from your GP, not a diary.
Bread, pasta, cereal, malted drinks
Onion, garlic, wheat, beans, certain fruits. The low-FODMAP protocol is a registered-dietitian-led diet; we're the diary you use during it.
Onion, garlic, wheat, apples, beans
Flushing, headache, gut symptoms after aged cheese, cured meats, wine, fermented foods. Pattern usually 1 to 4 hours after.
Aged cheese, wine, cured meat, fermented foods
Symptoms range from gut upset to skin flares. Worth keeping a dated log because eggs hide in bakery, mayo and sauces.
Bakery, mayo, sauces, custards
Common in plant-based foods, sauces, and many bakery items as lecithin (E322). We flag soy in the ingredient list on the scan.
Soy sauce, plant milk, bakery, ready meals
In wine, dried fruit, processed meats. UK law requires >10mg/kg to be declared on labels.
Wine, dried fruit, sausages, prawns
Fruit and high-fructose corn syrup in sugary drinks and confectionery. Bloating and gut symptoms in sensitive people.
Fruit, juice, fizzy drinks, sweets
After a couple of weeks of consistent logging the Pro analysis ranks ingredients by how often they appeared in the hours before your reactions, against how often they appeared on your calm days. The numbers come from your diary, not ours.
You log every meal, then log a reaction when you get one, with the time and a severity score. The analysis counts each ingredient's appearances in the window before your reactions and compares that with its appearances on your calm days. An ingredient that keeps turning up before symptoms, and rarely otherwise, rises to the top.
An ingredient you eat every day, on calm days as often as on reaction days, drops down the list, so a food you happen to eat a lot does not get blamed just for being common. These are suspects to take to your GP or a registered dietitian, not a diagnosis and not an instruction to cut anything out.
The NHS treats these as separate clinical pictures. We treat both. Different urgency, different testing path, different diary. Worth knowing which one you're tracking.
IgE-mediated allergies trigger the immune system within minutes. Hives, swelling, breathing trouble, in severe cases anaphylaxis. Diagnosed by a clinical specialist with skin prick tests, specific IgE blood tests or supervised oral food challenges.
Typically dose-dependent and delayed. Bloating, gut upset, fatigue, headaches, skin flares. No single diagnostic test for most. NHS and BDA recommend a 7 to 14 day food and symptom diary followed by supervised elimination and reintroduction.
The questions that come in from people about to start tracking. Answers sourced to NHS and BDA guidance.
Both. NutraSafe works as a food allergy checker (barcode scanner for ingredients, additives and the Big 14 allergens from the ingredient list) and as a food intolerance tracker with a reaction diary and symptom logging.
Most people need 2 to 4 weeks of consistent tracking to spot patterns. Log every meal and every reaction so the suspected-triggers analysis has enough days to work with.
No. We surface correlations between foods and symptoms but we're not a medical diagnostic tool. Take the diary to your GP or a registered dietitian for diagnosis.
Scanning, basic logging, and up to 5 reactions are free. NutraSafe Pro at £3.99/month or £34.99/year adds unlimited reactions, the suspected-triggers analysis, allergen warning detail and processed-food insights.
No. NutraSafe is a food diary and pattern-tracking tool, not a medical test. Clinical allergy tests detect immune-mediated allergies. NutraSafe is useful for tracking non-IgE food intolerances which don't show up on standard allergy tests, and many GPs recommend a food and symptom diary as a first step.
A basic food diary records what you eat. An intolerance tracker also logs symptoms, severity, and timing, then looks for correlations between specific foods and reactions. NutraSafe combines both: a full food diary with calorie tracking and barcode scanning, plus a dedicated reaction tracker.
Free download. Log up to 5 reactions on the free tier. Pro is £3.99/month or £34.99/year for unlimited reactions, the suspected-triggers analysis and AI Coach.
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