The single-serving rule, why the serving size isn't yours to choose, and label relief for small packs.
Portion control is really a serving-size question, and the defining rule is simple: under 21 CFR 101.9(b)(6), a product that is packaged and sold individually and contains less than 200% of the reference amount is a single-serving container — so its entire contents must be labeled as one serving.
This is where portion-controlled products most often go wrong. The serving size is based on the reference amount FDA sets for the product category (the RACC) — not on what would make the numbers look best.
So "portion-controlled" is an honest-labeling feature, not a numbers trick: the format lines the serving up with reality rather than letting a manufacturer sub-divide it.
Where your pack falls against the reference amount determines the label format. Portion-controlled products usually sit at the single-serving end:
| Package size vs reference amount | Label treatment |
|---|---|
| Under 200% of the RACC, sold individually | Single serving — the whole package is one serving |
| 150% to 200% of the RACC | Single serving; may add a voluntary per-RACC second column |
| 200% to 300% of the RACC | Dual-column required — per serving and per container → dual-column |
| Over 300% of the RACC | Standard multi-serving — per serving, with servings per container |
Because portion packs are often physically small, FDA allows scaled label formats based on available surface area:
FDA Registration Assistance determines the correct serving size from the reference amount, identifies which label format applies — single serving, dual-column, or small-package — and reviews your Nutrition Facts, claims, and allergen declarations, plus facility registration, U.S. Agent, and FSVP.
Contact us at info@fdaregistrationassistance.com or call +1 (928) 275-8333. Food Facility Registration is available starting at $858. Trusted by companies across 135+ countries, with 15+ years of experience.
The facility that manufactures, processes, packs, or holds the food registers with FDA, and foreign facilities need a U.S. Agent — the same as any packaged food. Portion control doesn't change registration. What it drives are the serving-size and labeling rules: because these products are built around a single portion, how the serving size and Nutrition Facts are handled is where the compliance work sits.
Under 21 CFR 101.9(b)(6), a product that is packaged and sold individually and contains less than 200% of the applicable reference amount (RACC) is a single-serving container — and its entire contents must be labeled as one serving. So a portion pack in that range isn't labeled as, say, "0.4 servings"; the whole pack is the serving, and the Nutrition Facts reflect eating all of it.
No. The serving size is based on the reference amount FDA sets for the product category (the RACC), not on what the manufacturer would prefer. You can't declare an artificially small serving to lower the calories or sugar shown per serving. For a single-serving portion pack, the whole package is the serving — which is exactly the point of the rule, so the label reflects what a person actually eats.
It's a spectrum tied to the reference amount. Under 200% of the RACC (sold individually): single serving, whole package. 150–200%: single serving, with an optional voluntary second column. 200–300%: dual-column labeling is required, showing per serving and per container. Over 300%: a standard multi-serving package. Portion-controlled products usually sit at the single-serving end, but knowing where you fall determines the label.
Then it generally needs dual-column Nutrition Facts — one column per serving and one for the entire container — because it's a size that could be eaten in one sitting or split. That's the flip side of the single-serving rule: just above the single-serving range, you owe both sets of numbers. There's a dedicated guide on resealable and dual-column products for that case.
Yes, based on available label surface area. Very small packages — under about 12 square inches of total surface area — may use a linear Nutrition Facts format, or in some limited cases just provide an address or phone number for nutrition information. Packages under about 40 square inches may use the tabular format. These are format accommodations for small packs, not a pass on the underlying requirements.
Often not in full. Very small single-serve packets — a ketchup or dressing packet — can qualify for reduced labeling, and products with insignificant amounts of all nutrients may be exempt from the Nutrition Facts panel. But even then, the identity, ingredient list, allergen declaration, and responsible-firm information generally still have to appear, on the packet or the outer package. "No Nutrition Facts" doesn't mean "no label."
That's a multiunit situation. If the inner portion packs aren't meant to be sold separately and the outer box is fully labeled, the inner packs can be exempt from carrying their own full label. If the portion packs are meant to be sold individually (like snack packs sold both in a box and singly), each pack needs its own compliant label. Whether the inner units are individually saleable is the deciding factor.
Not by itself. Describing a product as a portion or single serving is fine, but nutrient content claims ("100 calories," "low fat") and health claims still have to meet their specific FDA definitions based on the actual serving. A "100-calorie pack" has to genuinely be 100 calories for the labeled serving, which — for a single-serving pack — is the whole thing. The portion framing doesn't loosen the claim rules.
Portion packs supplied to restaurants, cafeterias, or institutions follow the foodservice-supply rules: the supplier registers, and food for immediate consumption may be exempt from the retail Nutrition Facts panel, though identity, ingredients, and allergens still travel to the operator. Portion packs sold at retail follow the single-serving labeling rules. The channel — retail versus foodservice — changes what the pack must show.
Yes. Imported portion packs must meet the same FDA serving-size and labeling rules, use U.S. reference amounts, and the importer holds FSVP. A portion pack sized to another country's serving conventions may need its serving size and Nutrition Facts recalculated to the U.S. RACC before import. It's worth confirming the serving size maps to the U.S. rules.
No. FDA doesn't pre-approve food or facilities — registration just puts the facility on record. It doesn't certify your serving size, your Nutrition Facts, or your claims; those remain your responsibility. Your portion-controlled product still has to meet all the serving-size, labeling, ingredient, and allergen requirements that apply.
Declaring a serving smaller than the reference amount to improve the numbers; labeling a single-serving pack as multiple servings (or vice versa); missing dual-column labeling on a 200–300% pack; over-reducing a small-package label below what's still required; and making claims the actual serving doesn't support. Most trace back to not setting the serving size correctly from the RACC first.
We determine the correct serving size from the reference amount, identify which label format applies (single serving, dual column, or small-package format), and review your Nutrition Facts, claims, and allergen declarations — plus facility registration, U.S. Agent, and FSVP for imports. For boxes of portion packs, we sort out the multiunit labeling. Starting at $858 for registration, for companies across 135+ countries. Contact info@fdaregistrationassistance.com or +1 (928) 275-8333.