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Ingredient file // Animal protein

Animal Liver

Useful organ nutrition, with an undisclosed species

Animal liver is an organ ingredient from a species the label does not identify. It adds animal protein and flavor to dog food. Its vitamin A content limits how much belongs in a recipe, and the vague name matters if your dog must avoid a particular protein.

Role in the food Supporting nutrient
Animal Liver
What it is
Liver used as a pet food ingredient without the source animal identified on the label.
Made from
Livers separated during animal processing
Main job
Animal protein and flavor
Typical amount
Generally below 5 to 10% of diet dry matter
Watch for
Unknown species during a food allergy trial
Not the same as
Dried liver meal

Straight answer

Is Animal Liver safe for dogs?

Read the species gap before choosing the food

Liver in a complete food is a real organ ingredient, but its place on the list gives no amount and "animal" gives no species. Check the food's nutritional adequacy statement. If your dog has a protein allergy or copper-related liver disease, choose a diet whose ingredients fit that condition.

Why it is in the food
Animal protein and flavor

Our read // In our catalog

In 1 of every 178 foods we track

Share of foods that list it

<1%

18 of the 3,204 foods with an ingredient list on file, from 5 brands. 17 wet dog food, 1 dog food topper.

Each square is 1% of the catalog

Where it sits on the label

Median position 4. In the top five of 17 foods, so it is usually a main ingredient.

Top five List position, heaviest first

Above the salt

100%

Almost always listed before the salt, so there is more of it than a pinch.

Who leans on it

56%

of the foods that list it are from Pedigree. 5 brands use it in total.

What it is

How it is made

Meat processing produces organs alongside cuts sold as meat. Pet food gives processors another market for liver. For canned food, the liver is blended with other ingredients before the sealed can is heat processed.4,8,9

  1. 01 // Source Animal livers Livers are separated during slaughter and meat processing alongside other organs.
  2. 02 // Process Kept chilled Meat ingredients usually travel to pet food plants in refrigerated trucks and are checked on arrival.
  3. 03 // Output Liver for mixing The liver arrives as a meat ingredient for blending into the food before a sealed can is heat processed.

What is in it

Composition, dry matter

71.4

% protein

The average in a small table of dried liver meal samples. It shows substantial protein, but does not measure this fresh liver ingredient.

Crude protein 69-73.6%1
Crude fat 9.4-16.6%1
Ash 4.2-10.4%1

These dried liver meal figures are a proxy for liver solids, not an analysis of this ingredient. Liver meal may include other organs, and the source animal and its diet change the mix.1,2,3

Why it is in the bag

A secondary meat that adds vitamin A and flavor

  1. Main nutrition
  2. Supporting nutrient
  3. Does a job
  4. Mostly filler

It adds animal protein, vitamin A and minerals, and makers value it as a highly palatable ingredient. Vitamin A sets a ceiling: an industry project says liver is generally kept below 5 to 10% of diet dry matter. Labels list ingredients by weight, not amount, so its exact share stays undisclosed. It supports the recipe rather than carrying it.1,3,5

  1. 01

    Adds animal protein

    Liver contributes protein alongside the recipe's other animal ingredients. Dried liver meal has a substantial protein share, though a label does not reveal how much liver protein the finished food contains.1,5

  2. 02

    Adds flavor

    Manufacturers use liver for its appeal in pet food. That does not tell you whether a particular dog will favor the finished recipe.3

  3. 03

    Gives organs a market

    Pet food is a market for organs from meat processing. Selling these parts brings processors revenue and spreads processing costs across more of the animal.8

  4. 04

    Contributes micronutrients

    Liver supplies vitamin A and minerals. Manufacturers must account for those nutrients across the whole recipe, especially when deciding how much liver to add.2,3

How much An industry project says liver is generally kept below 5 to 10% of diet dry matter because its vitamin A content varies.3

Our read // The claims

What the evidence supports

Strong: controlled studies in dogs agree. Some: small or mixed dog data. Thin: mechanism or lab work only. None: nothing, or the evidence points the other way.

  1. Brands say

    Liver adds useful animal protein

    Evidence

    1. Strong
    2. Some
    3. Thin
    4. None

    Feedipedia's 4 dried liver meal samples contained 69 to 73.6% crude protein on a dry matter basis. That supports liver as a protein ingredient, but these meal samples cannot show its contribution to a particular food.1,2

  2. Owners say

    Too much liver causes vitamin A toxicity

    Evidence

    1. Strong
    2. Some
    3. Thin
    4. None

    An industry project recommends keeping liver below 5 to 10% of diet dry matter because vitamin A varies among sources. Excess intake is a real formulation concern; liver's presence on a complete food's label does not show excess.3,5

  3. Brands say

    Liver boosts a dog's immune defenses

    Outruns the evidence

    Evidence

    1. Strong
    2. Some
    3. Thin
    4. None

    Feedipedia describes protein and micronutrients in liver meal, with its protein range drawn from 4 samples. Composition is not an immune outcome. These sources provide no dog trial showing that adding animal liver improves immune health.1,2

  4. Brands say

    Every dog finds liver irresistible

    Outruns the evidence

    Evidence

    1. Strong
    2. Some
    3. Thin
    4. None

    Meat & Livestock Australia calls liver highly palatable, but its project examined vitamin A reduction, not preference in dogs. Liver has a flavor role; an ingredient alone cannot predict whether every dog will like a finished food.3

  5. Critics say

    Animal liver is unsafe because it is a byproduct

    Outruns the evidence

    Evidence

    1. Strong
    2. Some
    3. Thin
    4. None

    A 4-sample dried liver meal table shows protein, while AAFCO explains that commercial canned food is heat treated. Byproduct status alone does not show a safety problem. The undisclosed species remains a practical concern for some dogs.1,4

Straight answers

What owners ask

  1. Q01

    Is it just filler?

    No

    Liver contributes animal protein and flavor. The useful label question is how much is present and which animal supplied it. An ingredient list gives its order by weight, not its amount.1,3,5

  2. Q02

    Which animal supplied the liver?

    Not disclosed

    This ingredient name does not identify the species. AAFCO allows meat and byproduct ingredients from cattle, swine, sheep or goats to appear without a species name. Ask the manufacturer if the answer matters for your dog.4,5

  3. Q03

    Is it the same as liver meal?

    No

    Liver meal is dried and ground. The meal figures here describe its dry solids for comparison, not the moisture or exact nutrient content of liver entering a canned recipe.1,2

  4. Q04

    Should dogs with copper disease avoid it?

    Use the vet diet

    Cornell's guidance on home-prepared diets for dogs with copper buildup, written for dogs that refuse commercial food, lists no organ meats. For commercial food, it points to therapeutic low-copper diets. Feed the diet your vet prescribes.6

Who uses it

Brands, best sellers and the company it keeps

Top brands, by foods that list it

  1. Pedigree 10 / 42
  2. Iams 3 / 31
  3. Ol' Roy 2 / 6
  4. Abound 2 / 20
  5. Authority 1 / 34

Foods that list it / all the brand's recipes we track.

Usually listed with, share of the foods that list it

  1. Meat By-Products 83%
  2. Chicken 83%
  3. Beef 67%
  4. Sufficient Water For Processing 61%
  5. Carrageenan 56%
  6. Wheat Flour 50%
  7. Minerals 50%
  8. Potassium Chloride 50%
  9. Magnesium Proteinate 50%
  10. Zinc Sulfate 50%
  11. Copper Proteinate 50%
  12. Manganese Sulfate 50%

On the shelf

Foods that list Animal Liver

18 foods in our catalog list it, highest on the label first.

Iams Proactive Health Senior With Slow Cooked Chicken AND Rice Classic Ground Wet Dog FoodIamsIams Proactive Health Senior With Slow Cooked Chicken AND Rice Classic Ground Wet Dog FoodWet // No. 3 on the labelPedigree Choice Cuts IN Gravy Adult Pouch, Beef, Bacon, & Cheese Wet Dog FoodPedigreePedigree Choice Cuts IN Gravy Adult Pouch, Beef, Bacon, & Cheese Wet Dog FoodWet // No. 3 on the labelAbound Lamb & Beef Dinner Wet Dog FoodAboundAbound Lamb & Beef Dinner Wet Dog FoodWet // No. 4 on the labelOl’ Roy Meaty Loaf Chicken and Beef Loaf for Puppies Can Wet Dog FoodOl' RoyOl’ Roy Meaty Loaf Chicken and Beef Loaf for Puppies Can Wet Dog FoodWet // No. 4 on the labelAuthority Sensitive Stomach & Skin Cuts in Gravy Adult Wet Dog FoodAuthorityAuthority Sensitive Stomach & Skin Cuts in Gravy Adult Wet Dog FoodWet // No. 4 on the labelIams Proactive Health With Lamb AND Rice Classic Ground Dog Food TopperIamsIams Proactive Health With Lamb AND Rice Classic Ground Dog Food TopperTopper // No. 4 on the labelPedigree Chopped Ground Dinner Adult Can, Beef, Bacon & Cheese Wet Dog FoodPedigreePedigree Chopped Ground Dinner Adult Can, Beef, Bacon & Cheese Wet Dog FoodWet // No. 4 on the labelAbound Wild Beginnings Lamb & Beef Dinner Pate Wet Dog FoodAboundAbound Wild Beginnings Lamb & Beef Dinner Pate Wet Dog FoodWet // No. 5 on the labelOl’ Roy Country Chicken Stew Flavor Cuts in Gravy Can Wet Dog FoodOl' RoyOl’ Roy Country Chicken Stew Flavor Cuts in Gravy Can Wet Dog FoodWet // No. 6 on the label
Show 9 more
Iams Proactive Health With Chicken AND Whole Grain Rice Classic Ground Wet Dog FoodIamsIams Proactive Health With Chicken AND Whole Grain Rice Classic Ground Wet Dog FoodWet // No. 4 on the labelPedigree Chopped Ground Dinner Adult Can, Filet Mignon Wet Dog FoodPedigreePedigree Chopped Ground Dinner Adult Can, Filet Mignon Wet Dog FoodWet // No. 4 on the labelPedigree Choice Cuts IN Gravy Adult Pouch, Filet Mignon Wet Dog FoodPedigreePedigree Choice Cuts IN Gravy Adult Pouch, Filet Mignon Wet Dog FoodWet // No. 4 on the labelPedigree Chopped Ground Dinner Adult Pouch, Chicken Wet Dog FoodPedigreePedigree Chopped Ground Dinner Adult Pouch, Chicken Wet Dog FoodWet // No. 4 on the labelPedigree Chopped Ground Dinner Adult Can, T-bone Steak Wet Dog FoodPedigreePedigree Chopped Ground Dinner Adult Can, T-bone Steak Wet Dog FoodWet // No. 4 on the labelPedigree Puppy Pouch, Chicken Wet Dog FoodPedigreePedigree Puppy Pouch, Chicken Wet Dog FoodWet // No. 4 on the labelPedigree Chopped Ground Dinner Adult Can, Chicken, Liver & Beef Wet Dog FoodPedigreePedigree Chopped Ground Dinner Adult Can, Chicken, Liver & Beef Wet Dog FoodWet // No. 4 on the labelPedigree Puppy Chopped Ground Dinner, Chicken & Beef Wet Dog FoodPedigreePedigree Puppy Chopped Ground Dinner, Chicken & Beef Wet Dog FoodWet // No. 4 on the labelPedigree Chopped Ground Dinner Adult Can, Turkey & Bacon Wet Dog FoodPedigreePedigree Chopped Ground Dinner Adult Can, Turkey & Bacon Wet Dog FoodWet // No. 4 on the label

Sources

What we read

Checked October 1, 2026.

  1. 1 Liver meal (all species) Feedipedia (INRAE, CIRAD, AFZ, FAO), 2012 // Database
  2. 2 Liver meal from warm-blooded animals Feedipedia (INRAE, CIRAD, AFZ, FAO), 2015 // Database
  3. 3 P.PSH.1430 - Reduction of Vitamin A in lamb liver for pet food application Meat & Livestock Australia, 2023 // Industry
  4. 4 Byproducts AAFCO, n.d. // Regulator
  5. 5 Reading Labels AAFCO, n.d. // Regulator
  6. 6 Copper hepatopathy and dietary management Cornell University College of Veterinary Medicine, 2024 // University
  7. 7 Cutaneous Food Allergy in Animals Merck Veterinary Manual, 2025 // Book
  8. 8 Beef and Pork Byproducts: Enhancing the U.S. Meat Industry’s Bottom Line USDA Economic Research Service, 2011 // Government
  9. 9 How Pet Food Is Made Pet Food Institute, n.d. // Industry
An ingredient on its own tells you very little. What matters is how much of it there is and where it sits in the list. That is why we weigh the top five rather than reacting to any single name further down. Back to the wiki

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