No general rule
There is no single food rule that fits everyone with gout, so GoutMe never gives one. It compares your days with more and less of each thing and says whether it went with your flare days. If a pattern shows up, Insights suggests a week worth testing, then the app compares your days again. Your GP or rheumatologist decides what to make of it.
Purines are not counted
The app does not calculate the purine content of a meal and does not measure your uric acid. Red meat, organ meat, shellfish and oily fish are taps, made when you ate them, and what the app tests is the day you tapped against the day you did not. That is a weaker measure than a lab and an honest one.
Where the numbers come from
Food you add in the app: a search of the USDA database, a barcode scan through Open Food Facts, or a photo of the meal that you check and correct before it is added. Or nutrition a food app already writes to Apple Health or Health Connect, which comes in on its own, water included. Either way the day is summed: calories, protein, carbs, fat, fibre, sugar, caffeine, water and a long list of vitamins and minerals.
Tested like any other trigger
Hydration low, sugar high and caffeine high and low fire from the daily totals against a fixed line and your own two-week normal. What Happened then tests them, along with beer, wine, spirits, red meat, shellfish, sugary drinks and fasting, against your flares with the same statistics as sleep or weather, and What Strengthens You shows the eating and drinking days that turn up when you have no flare.
Where it lives in the app
Food on the Log tab, and Diet under Monitor. The Diet screen holds the food search, barcode scanner and meal photo, today's log with water, sugar and caffeine, every nutrient, and the history with your flares marked. Beer, wine, spirits, red meat, shellfish, sugary drinks, not enough water and fasting are tiles in Quick Log.
What it needs from you
A tap for the drinks and foods that matter, when you have them. Then whatever you can add, or a nutrition app that writes to Apple Health or Health Connect. A gap is just a day without food data. Adding food in the app is part of Premium; the one-tap triggers are free.
