Before comparing snacks or using a scanner rating, make sure the nutrition numbers describe the same amount of food. Here are four steps to get started.
Nutrition Facts values normally relate to a specified serving. Check serving size and servings per container before assuming the listed amount describes the whole package. For cross-product comparisons, consistent amounts such as 100 g can add context.
Look at calories and nutrients such as saturated fat, sodium, dietary fiber and total or added sugars. Pay attention to whether figures are in grams, milligrams or percentages, and whether the source record uses a serving or standardized basis.
On US labels, percent Daily Value can help put a nutrient amount into the context of daily reference values. It does not tell you whether a specific food is medically appropriate for an individual.
Compare similar products using the same amount, read their ingredient lists, and take product-data confidence into account. A scanner score is only one summary; it should not override the package label.
