1. Know where a value comes from
An AI food photo or description produces an estimate. Barcode and search results come from food-reference databases; manual entries are information supplied by the user. No source is a guarantee of completeness or accuracy. Confirm the food, brand, serving size and preparation method before saving. A confidence indicator is not a measured accuracy percentage or medical validation.
Vitamins and minerals are shown only when reported by a supported source. Unknown is not zero. A photo cannot establish a complete micronutrient profile. Total sugar, added sugar and naturally occurring sugar are different measures; the app must not present a split as known when the source does not report it. Values per serving and per 100 g or 100 ml are not interchangeable. Carbohydrate and fibre definitions and reference targets can vary across countries.