RACC (Reference Amounts Customarily Consumed)

RACC — the Reference Amounts Customarily Consumed per eating occasion — is the FDA regulatory table that underlies every serving size on a U.S. Nutrition Facts panel. It is codified in 21 CFR 101.12 and assigns a reference amount to each of approximately 140 food categories, expressed in grams (or millilitres for liquids) together with the nearest common household measure.

What it is, literally

The RACC table is a matrix. Rows are food categories. Columns are: the reference amount in metric, the reference amount in a common household measure, and any applicable labelling provisions (for example, when the reference differs for 'as consumed' versus 'as packaged' for dry mixes). The reference for breakfast cereals, ready-to-eat, heavy (>=40 g/cup) is 55 g; for light cereal (<20 g/cup), 15 g; for carbonated beverages, 12 fl oz (360 ml); for pretzels, 30 g. Every manufacturer of a product that fits a category is bound to that amount when writing a label.

How the amounts were derived

The RACC amounts are empirical, not prescriptive. They come from food-intake survey data — originally USDA nationwide food-consumption surveys, later NHANES — analysing what a typical consumer actually eats per eating occasion within each category, and picking a round household measure that approximates the observed median (with adjustments for commonly packaged units). They are a census of behaviour, turned into a regulation. The FDA updates them when accumulated survey data diverges enough from the prevailing RACC to warrant revision; the 2016 update was the largest since 1993.

What RACC is not

RACC is not a recommended intake. It does not mean "you should eat 55 grams of cereal." It means "a typical consumption episode for this category is roughly 55 grams, and labelling will be based on that amount to keep comparisons consistent across brands." The distinction is frequently lost in consumer-facing discussions of serving sizes — a 2019 Public Health Nutrition analysis found that roughly half of surveyed consumers interpreted "serving size" as a recommended portion rather than as a typical descriptive reference.

The "one serving per container" rule

21 CFR 101.9(b)(6) provides that if a container holds less than 200 per cent of the RACC, the entire container should be labelled as a single serving. This rule is the reason a 16.9 fl oz bottle of iced tea (about 141 per cent of the 12 fl oz RACC) is labelled as one serving rather than 1.4 servings, and a 20 fl oz bottle of soda (167 per cent) is also one serving — but a 24 fl oz bottle (200 per cent) requires dual-column labelling or two-serving declaration.

Cross-jurisdictional note

The EU's nutrition labelling, governed by Regulation (EU) No 1169/2011, uses a different construct — 'per 100 g' or 'per 100 ml' is the mandatory basis, with 'per portion' optional and manufacturer-set. The U.S. RACC framework is unusual internationally for its combination of mandatory per-serving labelling and regulated (not manufacturer-chosen) serving size. A researcher comparing U.S. and EU label figures must convert between the two bases explicitly; a tracking app ingesting product catalogues from both markets must detect which convention applies per entry.