Guides
How to read a dog food label, section by section
The front of the bag is marketing. The back is regulated. Here is what each regulated part means and how to use it.
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A US dog food label has five parts worth reading: the product name, the ingredient list, the guaranteed analysis, the calorie statement and the nutritional adequacy (AAFCO) statement. The product name tells you roughly how much of the named ingredient is in the food. The AAFCO statement tells you whether it’s a complete diet and for which life stage. Everything else on the bag is marketing.
This guide is the first in our label series. It covers what each part says and what it doesn’t. The next two guides go deeper on comparing nutrients with dry matter basis and spotting hidden chicken.
Who sets the rules
In the US, pet food is regulated by the FDA and by individual states. Most states base their pet food rules on model regulations written by AAFCO, the Association of American Feed Control Officials. AAFCO itself is not a government agency and doesn’t approve or certify foods. When a bag mentions AAFCO, it means the food was formulated or tested against AAFCO’s published nutrient profiles or feeding procedures.
Labels in Europe, the UK and elsewhere follow different rules. This guide covers US labels.
The product name: how much of the named ingredient
The words in the product name are regulated. A few small words change how much of the named ingredient the food must contain. These are the four rules the FDA describes:
| Name pattern | Example | Minimum of the named ingredient |
|---|---|---|
| Ingredient alone (the “95% rule”) | “Beef Dog Food” | 95% of the product, not counting added water (70% counting water) |
| Ingredient + a word like dinner, platter, entrée, formula or nuggets (the “25% rule”) | “Beef Dinner for Dogs” | 25% of the product, not counting added water |
| “With” + ingredient (the “3% rule”) | “Dog Food with Beef” | 3% of the product |
| Ingredient + “flavor” | “Beef Flavor Dog Food” | No set percentage; the flavor must be detectable |
The practical difference is large. “Beef Dog Food” is mostly beef. “Dog Food with Beef” may be 3% beef. “Beef Flavor” may contain no beef meat at all, only a flavoring that comes from beef.
If a name lists two ingredients, such as “Chicken and Rice Dinner”, the rule applies to both combined, and the first-named one must be present in the larger amount.
The ingredient list: heaviest first, before cooking
Ingredients are listed in descending order by weight, as they go into the mix. That weight includes water.
This matters for meat. Fresh chicken is around 70% water, so it’s heavy going into the recipe and much lighter once the kibble is cooked and dried. A food that lists “chicken” first may contain less chicken protein than a food that lists “chicken meal” first, because chicken meal has already had most of its water removed.
Two other things to watch for:
- Split ingredients. “Peas, pea protein, pea fiber” listed separately can each sit below the meat, even though together they may outweigh it.
- The end of the list. Vitamins, minerals and preservatives sit at the end because they’re added in small amounts. Flavorings and fats also appear late, and these are often where allergens hide.
Ingredient order tells you rank, not amount. It can’t tell you the actual percentage of anything.
The guaranteed analysis: minimums and maximums
The guaranteed analysis lists at least four values:
- Crude protein, minimum percentage
- Crude fat, minimum percentage
- Crude fiber, maximum percentage
- Moisture, maximum percentage
“Crude” refers to the lab method, not the quality of the nutrient. “Minimum” and “maximum” are guarantees: the actual protein can be higher than the minimum, and the actual fiber lower than the maximum.
These numbers are given “as fed”, which means water is included. A dry food with 10% moisture and a wet food with 78% moisture can’t be compared directly. To compare them fairly, convert both to dry matter basis. Our Compare tool does this for you.
The calorie statement: kcal per kg and per cup
Dog food labels in the US carry a calorie statement in kilocalories of metabolizable energy (kcal ME), given per kilogram and per common household measure such as a cup or a can.
This is the most useful number on the bag for portion control. Two foods that look similar can differ by 100 kcal or more per cup, which over a month is a lot of extra food. Our Feeding Calculator uses this number to work out daily cups and grams for your dog, instead of relying on the bag’s generic chart.
The AAFCO statement: complete, for which life stage
The nutritional adequacy statement is the single most important line on the bag. It tells you two things:
1. Whether the food is complete and balanced. A complete food has all the nutrients a dog needs at that life stage. Foods labelled “for intermittent or supplemental feeding only” are not complete and shouldn’t be the main diet.
2. Which life stage it’s for. The common ones are:
- Adult maintenance
- Growth (puppies), sometimes with “including growth of large size dogs (70 lb or more as an adult)”
- Gestation/lactation (pregnant and nursing dogs)
- All life stages, which means it meets the requirements for growth and reproduction as well as adult maintenance
If you have a puppy of a large breed, look for a statement that specifically includes large-size growth. Large-breed puppies need tighter control of calcium and energy than small-breed puppies.
The statement also says how adequacy was shown:
- “Formulated to meet the nutritional levels established by the AAFCO Dog Food Nutrient Profiles” means the recipe was calculated or analysed to meet the profiles.
- “Animal feeding tests using AAFCO procedures substantiate…” means the food (or a closely related one in the same family) was fed to dogs in a feeding trial.
Both are acceptable routes. Feeding trials add evidence that dogs do well on the food in practice; formulation alone relies on the numbers.
What the rest of the bag is
Claims such as “premium”, “holistic”, “human-grade-inspired” or “ancestral” have no regulated nutritional meaning for most products. “Natural” and “organic” do have definitions, but they say nothing about whether a food suits your dog. Photos of fresh vegetables don’t tell you how much of them is inside.
The manufacturer’s name and contact details are required. Use them: a reputable company will answer questions about where its ingredients come from and how its foods are tested.
A two-minute label check
- AAFCO statement: complete and balanced, for your dog’s life stage?
- Product name: which naming rule applies, and what does that say about the named ingredient?
- Ingredient list: anything your dog must avoid, including fats and flavorings near the end?
- Calorie statement: kcal per cup, so you can feed the right amount.
- Guaranteed analysis: convert to dry matter if you’re comparing with a different format.
If you’re checking for a specific allergen, paste the ingredient list into the Label Checker. Next in this series: dry matter basis, explained with real numbers.
Sources
We link to the original source for every fact we rely on.
- labels
- aafco
- ingredients
- basics
This article is general information, not veterinary advice. You can also check it with your own vet or another qualified pet professional.
