Generic trigger-food lists only get most people partway there, because triggers vary meaningfully by individual. A trigger journal closes that gap by turning vague impressions ("spicy food seems bad for me") into a clear pattern. The simplest effective version logs four things for a couple of weeks: what and roughly how much you ate, what time you ate it, what time symptoms occurred (if any), and how severe they were. Patterns tend to emerge faster than expected — a specific food, a portion size, a time-of-day pattern, or a connection to stress or sleep that wasn't obvious from memory alone. The habit doesn't need to be permanent or perfectly detailed; two to three weeks of honest tracking is usually enough to identify the two or three biggest personal triggers, which is more useful than following someone else's list indefinitely.
