Editorial · PetScored desk · May 6, 2026
How to actually read a dog food label.
Forget the front of the bag. The four panels on the back are where every honest scoring decision starts. Most pet parents have never been taught how to read them. That is not an accident.
The front of a dog food bag is marketing real estate. Holistic, premium, vet-formulated, natural, biologically appropriate— none of those phrases are regulated, and none of them are scored by PetScored. The back of the bag is where the regulator’s rules apply, and it’s where every honest read of a recipe has to start.
There are four panels worth knowing. Two of them are required on every bag in the United States. Two of them are easier to lie with than you would expect.
1. The Guaranteed Analysis panel
This is the four-line table near the top of the back of the bag. It declares crude protein, crude fat, crude fiber, and moisture as guaranteed minimums or maximums. These are the numbers PetScored uses as the bedrock of the Nutrition Fit score.
The trick most readers miss: these percentages are as-fed, meaning they include moisture. A kibble that says 30% protein at 10% moisture is a much higher protein recipe than a wet food that says 12% protein at 78% moisture — even though the wet food number sounds bigger. To compare across formats, convert to dry-matter basis: divide the as-fed number by (100 minus moisture), then multiply by 100. PetScored does the conversion for you on every scorecard.
2. The Ingredient list
By regulation, the ingredient list is ordered by weight as the ingredient went into the recipe — before cooking. That matters more than it sounds. Whole chicken is roughly 70% water; chicken meal is dehydrated and concentrated. A bag that lists chicken first and chicken meal third is not necessarily higher-protein than a bag that lists chicken meal first and rice second.
The two things to look for: named animal sources (“chicken,” not “animal byproduct”), and named grains(“brown rice,” not“grain products”). PetScored credits specificity in both. It does not penalize byproducts or meals by default — those are honest ingredients with bad PR.
3. The AAFCO Adequacy Statement
This is the line that says something like “X is formulated to meet the nutritional levels established by the AAFCO Dog Food Nutrient Profiles for [life stage].” It is the regulator’s sign-off that the recipe meets minimum nutrient requirements for the life stage it claims.
Two forms exist. Formulated means the brand calculated the nutrient profile from the recipe; cheaper to do, weaker evidence. Animal feeding tests using AAFCO procedures substantiate that… means they ran an actual feeding trial; more expensive, much stronger. PetScored credits the second more than the first.
Watch for the life stage qualifier. “Adult maintenance” means the recipe is not adequate for puppies, large-breed growth, or pregnant dogs. “All life stages” means it covers growth too. “All life stages except large breed puppy” is a real and important exclusion if you have a Lab in the house.
4. The Calorie Content statement
Required on every dog food bag since 2017. Stated as kcal per kilogram of food and kcal per cup (or per can). This is the field that drives both feeding-amount math and PetScored’s Value sub-score — we benchmark cost per 1,000 kcal, which is the only honest way to compare price across kibble densities.
A bag that says 4,180 kcal/kg is denser than one at 3,500 kcal/kg. The denser bag feeds your dog longer for the same weight, which usually makes it cheaper per calorie even though the bag costs more. The label gives you the data; the calculation is yours.
What the front of the bag is doing while you read the back
Three things, all worth ignoring:
- Adjectives.“Holistic,” “premium,” “biologically appropriate,” “natural,” “ancestral.” None are regulated.
- Stock photography. A bag with a side of beef on the front is not legally obligated to contain a meaningful amount of beef. The ingredient list decides; the photo does not.
- Vet endorsements.“Vet recommended” usually means the brand surveyed a small number of vets. “Vet-formulated” can mean a single veterinarian was paid to consult. Neither phrase means the bag meets a clinical standard.
The shortcut
If you have ninety seconds in the pet store aisle, look at four things in this order: the AAFCO statement (does it cover your dog’s life stage?), the first three ingredients (are they named?), the calorie content (do you know how much to feed?), and the brand (does it have a recent recall? Check our recall index).
Everything else is information. Most of the rest of the bag is decoration.
— The PetScored desk. See the rubric in detail in our dog food methodology.