That gap is why food diaries fail. Aftertaste logs what you ate, asks how you feel hours later, and looks for the ingredients that keep turning up before a bad day.
Plain words, the way you'd say it. Aftertaste breaks a dish into its ingredients and the components inside them — lactose, gluten, fructans, histamine.
A few taps, a few hours later. How's the bloating, the headache, the energy. Thirty seconds, and the timing is the point.
Which components keep showing up before a bad day — and, just as useful, which ones can't be told apart yet because you always eat them together.
Aftertaste doesn't diagnose anything. No app can. It's a diary with statistics attached: it finds candidates and shows you the evidence behind each one, so you have something concrete to take to a doctor or dietitian instead of a hunch.
There's no account, no sign-up, and no server holding your symptom history — it lives in your browser's storage on your own device. You can export everything as a file whenever you like, and that export is also your backup, so keep one.
Aftertaste is free to use.