Nutrition calculation methodology

ForkMacros multiplies a food reference profile expressed per 100 grams by the selected gram weight divided by 100. Recipe totals are the sum of these estimates; values per serving are the total divided by the number of servings.

Weight units convert using fixed conversion factors. Non-weight portions, such as cups, slices and fillets, are supported only when the chosen food record contains a specific gram weight. The tool will not silently assume that every cup weighs 240 grams.

When raw food is entered by cooked weight, an optional estimated cooking yield converts it to raw-equivalent weight. This does not account for nutrient retention, frying oil, rendered fat or liquid losses. Prefer an appropriate raw or cooked reference record whenever possible.

The bundled demonstration dataset contains food entries with USDA FDC identifiers; those identifiers and nutrient figures have not been independently checked within this release. Reconcile them with FoodData Central before describing the database as verified.

A macro calculator estimates adult BMR using the Mifflin–St Jeor equation and applies an activity multiplier. Daily calorie and macro targets are broad estimates, not a medical plan.