CanIEat: Histamine Diary

CanIEat helps you track meals, symptoms and patterns when living with histamine intolerance, lactose intolerance or coeliac disease. Record what you eat and how you feel, then explore the connections in your own diary. Built by someone who lives with histamine intolerance. A simple personal diary that fits the way you prefer to log. LOG IN SECONDS • Database of 514 foods with information on histamine, lactose and gluten; histamine ratings are based on the SIGHI 2024 list • Quick daily check-ins or detailed records of individual meals • Reactions, symptoms, portions and your own notes • Repeat your last meal with foods and portions already filled in • Scan packaging text with the camera and search foods in all supported languages EXPLORE YOUR PATTERNS • See foods that appear in your records alongside reactions • “What can I eat now?”: foods with enough observations and mostly reaction-free records, taking your profile into account • Record counts, observation periods and an indicative confidence level • Separate trends for daily check-ins and individual meals • Calendar heatmap for an overview of recorded days • Other factors such as stress, sleep, hormonal cycle and exercise • Optional sleep reading from Apple Health to suggest the “Lack of sleep” factor EVERYDAY FOODS AND REMINDERS Set your everyday foods and confirm what you actually ate during each daily check-in. Choose your evening reminder time or switch reminders off; days with a record are skipped. Streaks and medals recognise regular logging. YOUR DATA AND A REPORT FOR YOUR DOCTOR • Your diary is stored on your device • No account, no ads and no subscription. One-off purchase. • JSON backups include foods, portions, symptoms, factors and settings • Restore older backups and merge records with your existing history • PDF reports include symptoms, factors, portions and separate check-ins from meals; optionally include reaction-free records too LANGUAGES Czech, English, German and Spanish — including food names and database notes. The app uses Czech text for Slovak. CanIEat shows associations in your records. It does not replace a medical diagnosis or personalised advice. IDEAS, FEEDBACK & BUG REPORTS Help shape CanIEat. Share your ideas, feedback and bug reports on our developer Discord: https://discord.com/invite/UeJEAZWG8T