Pet food regulation in Europe vs USA: FEDIAF, AAFCO, what do they actually guarantee?
The bag of kibble you buy carries the phrase "complete and balanced". This phrase has a precise legal meaning - but that meaning is less reassuring than it appears. To understand what it actually guarantees, you need to understand how pet food regulation works in Europe and the United States, what it requires from manufacturers, and crucially what it does not require.
The short answer: pet food regulation guarantees basic safety and compliance with minimum nutritional thresholds. It does not guarantee ingredient quality, digestibility, absence of excess carbohydrates, sourcing transparency, or the absence of legal but nutritionally questionable ingredients. It is precisely to go beyond these minimums that PetFoodRate exists. You can consult our full methodology to see how our 23 scoring criteria intersect with - and exceed - regulatory requirements.
This article is also available in French: Réglementation pet food en Europe vs USA.
The European framework: Regulation 767/2009 and FEDIAF
EC Regulation 767/2009
In Europe, animal feed is primarily regulated by EC Regulation No 767/2009 of the European Parliament and of the Council, which entered into application in 2010. This text replaces earlier directives and is the reference framework for the placing on the market, use and labelling of animal feed.
What Regulation 767/2009 concretely requires:
Mandatory labelling:
- Product designation
- List of materials (in descending order of weight at the time of incorporation)
- Analytical constituents (crude protein, crude fat, crude ash, crude cellulose)
- Additives (vitamins, trace elements, preservatives) with EC number
- Target animal species
- Instructions for use and storage recommendations
- Batch number and best-before date
- Net weight
- Manufacturer or distributor contact details
What the regulation does not fix:
- Maximum carbohydrate levels (no legal ceiling)
- Obligation to declare digestibility
- Distinction between "chicken meal" and "fresh dehydrated chicken" (both can be declared under equivalent names)
- Geographic origin of raw materials
- Ratio of animal protein to vegetable protein
FEDIAF: voluntary guidelines
The FEDIAF (European Pet Food Industry Federation) is the professional organisation representing pet food manufacturers in Europe. It publishes nutritional guidelines - recommendations for optimal levels of essential nutrients - but these are voluntary documents, not legal obligations.
The FEDIAF 2023 guidelines set, for example:
- Crude protein for adult dogs: minimum 18 pourcent on dry matter basis
- Crude protein for adult cats: minimum 25 pourcent on dry matter basis
- Arachidonic acid (AA) for cats: minimum 0.02 pourcent dry matter (cats cannot synthesise AA, so it must be provided by diet)
- Taurine for cats: minimum 0.10 pourcent dry matter (same logic)
These minimums are useful but start from a low baseline. Our best cat food 2026 rankings show that A-grade products in our system exceed the FEDIAF protein minimum by 40-60 pourcent - illustrating that "FEDIAF compliant" and "nutritionally optimal" are not synonymous.
The "complete and balanced" validation in Europe
For a manufacturer to apply the "complete feed" designation to their product, they must demonstrate that the formula meets nutritional minimums. Two methods are accepted:
1. Formulation by calculation: the manufacturer calculates their formula's composition and verifies that nutrients reach established minimums. This is the most widely used method.
2. Feeding trial: the manufacturer feeds real animals the product for a set duration and measures biological parameters (weight, physical condition, blood markers). More reliable but costlier and rarer.
The calculation method has an important limitation: it guarantees that nutrients are present in the raw materials, not that they are bioavailable after the manufacturing process. A food can theoretically contain 30 pourcent calculated protein, but if that protein comes from low-digestibility sources, the animal assimilates only a fraction. Digestibility is not regulated.
The American framework: the FDA and AAFCO
The FDA: the federal authority
In the United States, animal foods fall under the Food and Drug Administration (FDA) at the federal level. The FDA governs safety (prohibition of dangerous substances, microbiological contamination control, traceability) but largely delegates nutritional standards to AAFCO.
AAFCO: a private body with de facto authority
The Association of American Feed Control Officials (AAFCO) is a private organisation of state feed control officials. It publishes "Model Regulations" - model regulations that member states can adopt into their positive law. Virtually all US states have adopted AAFCO standards into their legislation, giving them de facto regulatory force despite their private status.
AAFCO publishes two primary reference documents:
- Nutrient Profiles for Dog Foods and Cat Foods - the minimum nutritional profiles
- The Pet Food Label Manual - labelling rules
AAFCO Nutrient Profiles distinguish two life stages:
- "Growth and Reproduction": higher profile requirements
- "Adult Maintenance": baseline profile
A product claiming "all life stages" must meet the growth requirements - making it technically suitable for all life stages but potentially providing excess levels of certain nutrients for adults.
AAFCO labelling rules: stricter than Europe on certain points
AAFCO imposes specific labelling rules that have no equivalent in European law:
The 95 pourcent rule: if a product is named "Chicken for Dogs" (without other qualifiers), chicken must represent at least 95 pourcent of the total ingredients (excluding water) or 70 pourcent of total weight.
The 25 pourcent rule ("Dinner" rule): if a product is named "Chicken Dinner" or "Chicken Platter", chicken must represent 25-95 pourcent.
The 3 pourcent rule ("with Chicken"): if a product is named "Dog Food with Chicken", chicken can represent as little as 3 pourcent.
The "flavored" rule: "Chicken-flavored Dog Food" imposes no minimum of real chicken - only a detectable indication in analysis.
These labelling rules are more precise than the European framework on this specific point. In Europe, a manufacturer can name their product "Chicken" provided chicken is the first ingredient in the list - even if it represents only 15 pourcent of the formula.
AAFCO "complete and balanced" validation
AAFCO validation works through the same two methods as in Europe:
1. Formulation: "Formulated to meet the AAFCO Dog/Cat Food Nutrient Profiles" The manufacturer calculates AAFCO profile compliance. The full label statement must indicate which method was used - allowing informed consumers to distinguish between the two.
2. Feeding trial: "Animal feeding tests using AAFCO procedures" Minimum 6-month trials on a panel of real animals with biological measurements. Trials are supervised by veterinarians and results must demonstrate that animals maintain their physical condition over the trial duration.
The distinction matters: a product validated by feeding trial has proven its nutritional value under real conditions. A product validated by formulation alone has only proven paper compliance.
Our how to read a pet food label guide explains how to find and interpret these statements on the packaging you buy.
Comparative table: Europe vs USA
| Criterion | Europe (Regulation 767/2009 + FEDIAF) | USA (FDA + AAFCO) |
|---|---|---|
| Regulatory authority | European Commission + Member States | FDA (federal) + States (AAFCO) |
| Binding force | Mandatory EC Regulation + voluntary FEDIAF | Mandatory FDA + AAFCO via state law |
| Minimum protein - adult dog | 18% DM (FEDIAF) | 18% DM (AAFCO) |
| Minimum protein - adult cat | 25% DM (FEDIAF) | 26% DM (AAFCO) |
| Carbohydrate ceiling | None | None |
| Digestibility declaration | Not required | Not required |
| Ingredient nomenclature rules | Descending weight order | Descending weight + % rules for product name |
| "Complete and balanced" validation | Formulation OR feeding trial | Formulation OR feeding trial (with mandatory method disclosure) |
| Ingredient origin traceability | Not required | Not required |
| Contaminant control | EFSA, fixed limits | FDA, fixed limits |
What regulation does not cover - and why it matters
1. No ceiling on carbohydrates
This is the most significant regulatory gap from a nutritional standpoint. Neither European regulation nor AAFCO set a maximum carbohydrate level in dog or cat food. A manufacturer can legally market a kibble with 60 pourcent carbohydrates on dry matter basis, have it validated as "complete and balanced", and sell it as a healthy diet.
Yet cats are obligate carnivores with limited carbohydrate metabolism - their liver lacks the inducible glucokinase that omnivores use to handle high starch intakes. Dogs, though omnivores, did not evolve to handle 50 pourcent of their calories as carbohydrates. Regulation entirely ignores this biological reality.
Our grain-free dog food guide explores this in detail with the available scientific evidence.
2. Digestibility: absent from legal requirements
The apparent digestibility of a food - the proportion of nutrients actually absorbed by the animal compared to those ingested - is nowhere required for declaration. A manufacturer can formulate a food with 30 pourcent protein, 20 pourcent of which comes from feather meal or hoof meal - protein sources with 40-50 pourcent digestibility - and legally label it "30 pourcent crude protein".
Real digestibility ranges from 60 to 90 pourcent depending on protein sources. This variation is enormous in terms of effective nutritional delivery, and consumers have no legal means of knowing this from the label.
3. Ingredient quality beyond safety
Regulation controls the presence of dangerous contaminants (mycotoxins, heavy metals, Salmonella) and prohibits unauthorised ingredients. It says nothing about the relative quality of all-legal ingredients.
"Dehydrated chicken" (lean muscle, high digestibility, excellent amino acid profile) and "chicken meal" (mix of carcasses, offal, bone, variable digestibility) are two different ingredients with very different nutritional values. Regulation treats them identically provided they meet safety limits.
4. No sourcing transparency
No regulation compels manufacturers to indicate the geographic origin of their ingredients. "Chicken" can denote Brazilian, Thai, or Polish poultry. "Salmon" can be farmed or wild-caught. These origin differences have implications for nutritional quality (omega-3 content, pesticide exposure, farming conditions) that regulation ignores entirely.
5. Legal but questionable additives
Certain additives are permitted in both Europe and the USA but are subject to documented scientific concerns. BHA (E320) is classified as "possibly carcinogenic" by the IARC while remaining authorised in animal food. Propylene glycol is permitted in wet dog food but prohibited for cats (documented toxicity) - demonstrating that law can exclude dangerous ingredients, but only once evidence is sufficiently established and industrial lobbying overcome.
How PetFoodRate goes further
Our scoring system goes beyond regulatory minimums on several points:
Additional criteria in our scoring:
- Ratio of animal protein to total protein (no substitution with less appropriate vegetable proteins)
- Estimated carbohydrate level by subtraction (protein + fat + moisture + ash + fibre subtracted from 100)
- Protein source identification (first source named and identifiable)
- Absence of penalising ingredients (BHA, BHT, artificial colours, added sugars)
- Label transparency (some brands communicate more detailed analyses than others)
- Consistency with available feeding trial evidence in veterinary literature
This is why a "FEDIAF compliant" and even "complete and balanced" product can score C or D in our rankings if its formulation is carbohydrate-heavy, its protein sources poorly identified, or its preservatives questionable.
Concrete examples
| Product | Regulatory compliance | PFR Score | Reason for gap |
|---|---|---|---|
| Acana Wild Atlantic | FEDIAF + EU compliant | 91/100 | Identified proteins, low carbs, no synthetic preservatives |
| Royal Canin Adult | FEDIAF + EU compliant | 68/100 | High carbohydrates, imprecise protein sources |
| Whiskas Adult | FEDIAF + EU compliant | 42/100 | BHA present, very high carbohydrates, "meat and animal derivatives" unspecified |
| Pedigree Adult | FEDIAF + EU compliant | 39/100 | Similar profile to Whiskas, maize in first position |
All four products above are legal, compliant, and can carry the "complete and balanced" label. The 52-point gap between first and last reflects the difference that regulation cannot see.
What to expect from regulatory evolution
In Europe
The European Commission regularly reviews Regulation 767/2009. Proposals have been put forward to:
- Improve the precision of ingredient denominations (distinguishing meals by anatomical origin)
- Strengthen traceability requirements
- Align contaminant limits with the most recent scientific data
These evolutions are positive but do not address the absence of a carbohydrate ceiling or digestibility requirements.
In the United States
AAFCO reviews its Nutrient Profiles cyclically. The 2023 version notably strengthened DHA requirements for "Growth and Reproduction" foods following scientific evidence of DHA's role in brain development in puppies and kittens.
Discussions are ongoing regarding the definition of "grain-free" and the conditions for marketing grain-free diets, following the controversy around dilated cardiomyopathy (DCM) and its possible association with certain grain-free diets high in legumes. Our grain-free analysis covers this subject in detail.
What consumers can do
Regulatory reform moves slowly. The carbohydrate ceiling and digestibility declaration gaps are unlikely to be filled in the near term, given the lobbying weight of major manufacturers in both Brussels and Washington. But informed consumers are not powerless. Several practical strategies allow you to navigate the gap between what regulation guarantees and what your animal actually needs.
Use independent scoring systems
Regulatory compliance tells you only that a product cleared the legal floor. Independent scoring systems like PetFoodRate evaluate formulas on criteria regulators don't touch: carbohydrate estimation, protein source identification, omega-3 to omega-6 ratio, ingredient quality, and label transparency. Reading regulatory compliance and independent scores together gives a far more complete picture than either alone.
Demand content disclosure from manufacturers
Several brands - particularly in the premium and super-premium segment - voluntarily publish detailed nutritional analyses including carbohydrate content, digestibility data from feeding trials, and specific omega-3 content in mg/kg. When you purchase from a brand that provides this level of transparency, you reward that behavior commercially. When you avoid brands that hide behind the regulatory minimum, you apply market pressure for better disclosure.
Read the method of validation on the label
AAFCO-regulated US products must state whether they were validated by calculation ("formulated to meet AAFCO nutrient profiles") or by actual feeding trial ("animal feeding tests using AAFCO procedures"). This distinction is meaningful and visible. In Europe, the equivalent distinction is less clearly marked, but some brands voluntarily indicate that their products were tested in feeding trials. Prioritizing feeding-trial-validated products gives you more confidence in real-world nutritional delivery.
Cross-reference with veterinary literature
The veterinary nutrition literature contains digestibility studies, feeding trial results, and nutrient availability data for many commercial formulas. These studies are published independently of manufacturer funding in journals like the Journal of Animal Physiology and Animal Nutrition, the Journal of Nutritional Science, and the Journal of the American Veterinary Medical Association. Several veterinary nutrition specialists maintain publicly accessible summaries of published data. This information is harder to find than a marketing claim, but far more reliable.
The Nutri-Score precedent
The Nutri-Score is a front-of-pack nutritional labeling system developed initially in France and now adopted in several EU member states for human food. It assigns products a letter from A (most nutritious) to E (least nutritious) based on a formula that weighs positive elements (protein, fiber, fruit/vegetable content) against negative ones (saturated fat, sugar, sodium). It is displayed prominently and is designed to be interpretable in seconds.
The Nutri-Score model is imperfect - it has well-documented limitations with ultra-processed foods and certain traditional products - but it represents a documented attempt to go beyond the regulatory minimum in consumer information. A consumer seeing a Nutri-Score E on a breakfast cereal is receiving information that raw ingredient list reading would take much longer to extract.
The parallel for pet food is direct and instructive. A simplified front-of-pack scoring system for pet food - one that flagged excessive carbohydrates, unidentified protein sources, and the presence of penalized preservatives - would enable purchasing decisions that current labeling rules cannot support.
Several industry observers and veterinary nutrition advocates have proposed exactly this: a voluntary front-of-pack score for pet food aligned with independent nutritional criteria rather than regulatory minimums. The challenge is adoption: manufacturers of lower-scoring products have no commercial incentive to volunteer unflattering scores, and no regulatory body currently has the mandate to impose such a system.
What exists today are independent scoring databases - of which PetFoodRate is one example - that fulfill the same function without the front-of-pack visibility. They require the consumer to seek out the information rather than encountering it at the point of sale. This is less efficient than a mandated label, but represents the realistic state of consumer information in the pet food sector for the foreseeable future.
The Nutri-Score precedent matters because it demonstrates that nutritional scoring beyond regulatory minimums is technically feasible, commercially deployable, and genuinely useful to consumers. The barriers to a pet food equivalent are political and commercial, not technical.
What you should take away
Pet food regulation is a safety net, not a quality label. It protects you from dangerous foods and guarantees minimum nutritional intakes. It does not tell you whether the formula is adapted to your animal's biology, whether the ingredients are quality, or whether nutrients are bioavailable.
"FEDIAF compliant" and "AAFCO compliant" are necessary but not sufficient conditions for choosing a good food. This is why our best dog food rankings and best cat food rankings systematically go beyond regulatory compliance.
The next time you see "complete and balanced" on a bag, know that this means "meets minimum legal requirements" - nothing more. It is a floor, not a ceiling.
Sources
- Regulation (EC) No 767/2009 of the European Parliament and of the Council of 13 July 2009 on the placing on the market and use of feed for animals. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32009R0767
- FEDIAF. Nutritional Guidelines for Complete and Complementary Pet Food for Cats and Dogs, 2023 edition. https://www.fediaf.org
- AAFCO. Official Publication 2024 - Pet Food and Specialty Pet Food Labeling Guide. https://www.aafco.org
- U.S. Food and Drug Administration. Pet Food Labeling. https://www.fda.gov/animal-veterinary/animal-food-feeds/pet-food
- Zicker SC. Evaluating pet foods: how confident are you when you recommend a commercial pet food? Topics in Companion Animal Medicine, 2008. https://doi.org/10.1053/j.tcam.2008.04.009
- EFSA Panel on Additives and Products or Substances used in Animal Feed. Safety and efficacy of BHA as technological additive for all animal species. EFSA Journal, 2018.
- Clara Bell, Writer and Regulatory Analyst, PetFoodRate