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Ingredient file // Other

Carrageenan

A useful wet food thickener, not nutrition

Carrageenan is a red seaweed extract that thickens gravy and helps canned food hold its shape. Its job is texture. A short dog tolerance trial is reassuring at the tested amount, while claims that it causes cancer in dogs lack evidence.

What it is
Extracted red seaweed carbohydrates, dried into a powder that thickens liquids and forms gels in wet food.
Made from
Farmed or harvested red seaweed
Main job
Wet food texture
Typical amount
About 0.5% in a canned food experiment
Watch for
Persistent stool changes after a food switch
Not the same as
Poligeenan

Straight answer

Is Carrageenan safe for dogs?

Read it as a texture ingredient

Carrageenan low on a wet-food list tells you how its gravy or pate is held together. Read the meat, fat and other major ingredients first. If your dog does well on the food, this ingredient alone gives you no good reason to switch. Persistent stool changes call for comparing the whole recipes.

Why it is in the food
Wet food texture

Our read // In our catalog

In 1 of every 19 foods we track

Share of foods that list it

5%

173 of the 3,204 foods with an ingredient list on file, from 22 brands. 163 wet dog food, 10 dog food topper.

Each square is 1% of the catalog

Where it sits on the label

Median position 11. In the top five of 7 foods, so it is usually a minor ingredient.

Top five List position, heaviest first

Above the salt

67%

Listed before the salt in 67% of foods. In the rest it is under about 1% of the recipe.

Price per lb

Foods with it $3.94
All foods $3.25

Median of the cheapest bag price across 8 priced foods, 21% above the catalog. The price is the food's, not the ingredient's.

Who leans on it

23%

of the foods that list it are from Blue. 22 brands use it in total.

What it is

How it is made

Seaweed growers supply red algae for the food thickener industry. Processors extract the algae's gelling carbohydrates, separate them from much of the seaweed material, and dry the extract for food manufacturers.4,6,7

  1. 01 // Source Red seaweed Cultivated and wild red seaweeds supply the carbohydrates used to make carrageenan.
  2. 02 // Process Hot extraction Water or dilute alkali draws the gelling carbohydrates out of the seaweed.
  3. 03 // Process Separated and dried Processors recover the extract and dry it; the method determines how much seaweed material remains.
  4. 04 // Output Carrageenan powder The dried powder arrives at wet food plants to thicken liquid or help a gel set.

What is in it

Composition, dry matter

15-40

% sulfate

The dry-weight specification for refined carrageenan. Sulfate is part of its carbohydrate structure, not a nutritional benefit for dogs.

Sulfate 15-40%4
Ash 15-40%4
Acid-insoluble matter 0-2%4

These are specification limits for refined carrageenan, not measured averages across dog foods. Semi-refined material retains some seaweed cellulose, and the proportions of different carrageenan types affect texture.2,4

Why it is in the bag

What the manufacturer gets

  1. 01

    Sets canned food

    Its long carbohydrates form a gel as food cools. In a canned food experiment, the recipe containing carrageenan and guar gum made the firmest pate.3,4

  2. 02

    Stabilizes wet food

    Thickening helps keep liquid and solids together. The finished texture also depends on the other gums, salts and proteins in the recipe.3,4

  3. 03

    Works in small amounts

    A canned food experiment used 0.5% carrageenan to change texture. Cultivated red seaweed gives processors a commercial supply of the raw material.3,6

How much A canned food experiment used 0.5% carrageenan; a 28-day dog tolerance study tested 0.6% semi-refined carrageenan in wet food.2,3

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

    Carrageenan gives canned food its shape

    Evidence

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

    In a controlled canned food experiment, a recipe with 0.5% kappa carrageenan and 0.5% guar gum made the firmest pate. The blend supports a texture job but does not isolate carrageenan's effect.3

  2. Brands say

    Carrageenan makes dogs' stools firmer

    Outruns the evidence

    Evidence

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

    A 6-dog study found stool differences between diets with and without gelling agents. Carrageenan was paired with another gum, so the results cannot credit carrageenan alone or promise firmer stools.1

  3. Critics say

    Carrageenan inflames dogs' intestines

    Outruns the evidence

    Evidence

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

    Simulated digestion products produced inflammation-related changes in cultured human intestinal cells. That laboratory design does not show intestinal inflammation in dogs eating wet food; the 28-day dog tolerance study did not measure it.2,7

  4. Critics say

    Carrageenan causes cancer in dogs

    Outruns the evidence

    Evidence

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

    No dog cancer study supports the claim. EFSA found no carcinogenicity concern for food-grade carrageenan in the animal evidence it reviewed. Poligeenan, used in some harmful experiments, is a different material.5,7

  5. Brands say

    Carrageenan is safe at ordinary wet food amounts

    Outruns the evidence

    Evidence

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

    EFSA judged 0.6% semi-refined carrageenan safe in a 28-day dog tolerance study. That is useful short-term evidence for the tested material and diet, not proof about lifelong feeding of every formulation.2

Straight answers

What owners ask

  1. Q01

    Is it just filler?

    No

    It has a measurable manufacturing job: changing the texture of wet food. It is not added as a protein or vitamin source. Judge the food's nutrition by its main ingredients and analysis.3,4

  2. Q02

    Is it the same as poligeenan?

    No

    Poligeenan is made by breaking carrageenan down under harsh acid conditions. It is not used as a food additive, so experiments using it do not describe the ingredient named on this label.5,7

  3. Q03

    Did it make dogs lose weight?

    No group difference

    In the 28-day tolerance study, weekly body weight did not differ between groups. Dogs initially lost weight because the calculated diets supplied too little energy. EFSA did not consider the continued loss in the highest-dose group adverse.2

  4. Q04

    Should I avoid it?

    Not routinely

    The tested wet-food amount was safe in a short dog trial. If your dog develops persistent stool changes after switching foods, compare the whole recipes; the label alone cannot identify carrageenan as the cause.1,2

Who uses it

Brands, best sellers and the company it keeps

Top brands, by foods that list it

  1. Blue 39 / 186
  2. Purina 25 / 185
  3. Royal Canin 25 / 160
  4. Cesar 17 / 45
  5. Pedigree 12 / 42
  6. Wellness 11 / 118
  7. Nutro 11 / 71
  8. Edgard & Cooper 5 / 11
  9. Authority 4 / 34
  10. Iams 4 / 31

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

Plus 12 more brands.

Usually listed with, share of the foods that list it

  1. Chicken 72%
  2. Chicken Liver 44%
  3. Chicken Broth 41%
  4. Potassium Chloride 31%
  5. Carrots 29%
  6. Guar Gum 28%
  7. Water 28%
  8. Water Sufficient for Processing 24%
  9. Pork By-Products 23%
  10. Beef 22%
  11. Meat By-Products 20%
  12. Zinc Sulfate 20%

On the shelf

Foods that list Carrageenan

173 foods in our catalog list it. These 60 list it highest on the label.

Wellness Ninety-Five Percent Whitefish Dog Food Mixer or TopperWellnessWellness Ninety-Five Percent Whitefish Dog Food Mixer or TopperTopper // No. 4 on the labelOl’ Roy Meaty Loaf Chicken and Rice Dinner Can Wet Dog FoodOl' RoyOl’ Roy Meaty Loaf Chicken and Rice Dinner Can Wet Dog FoodWet // No. 5 on the labelBlue Wilderness Beef Chicken Grill Wet Dog FoodBlueBlue Wilderness Beef Chicken Grill Wet Dog FoodWet // No. 5 on the labelWellness Ninety-Five Percent Lamb Grain-Free Dog Food Mixer or TopperWellnessWellness Ninety-Five Percent Lamb Grain-Free Dog Food Mixer or TopperTopper // No. 5 on the labelWeruva Dogs in the Kitchen Classic Dog Marbella Paella with Mackerel & Pumpkin Grain-Free Wet Dog FoodWeruvaWeruva Dogs in the Kitchen Classic Dog Marbella Paella with Mackerel & Pumpkin Grain-Free Wet Dog FoodWet // No. 6 on the labelPedigree Chopped Ground Dinner Adult Pouch, Chicken Wet Dog FoodPedigreePedigree Chopped Ground Dinner Adult Pouch, Chicken Wet Dog FoodWet // No. 6 on the labelBlue Wilderness Trout Chicken Grill Wet Dog FoodBlueBlue Wilderness Trout Chicken Grill Wet Dog FoodWet // No. 6 on the labelNutro Chicken Entreé topped with Bites of Real Chicken & Spinach Grain-Free Wet Dog FoodNutroNutro Chicken Entreé topped with Bites of Real Chicken & Spinach Grain-Free Wet Dog FoodWet // No. 6 on the labelDave’s Pet Food 95% Premium Meats Turkey & Chicken For Dogs / Grain-Free Wet Dog FoodDave's Pet FoodDave’s Pet Food 95% Premium Meats Turkey & Chicken For Dogs / Grain-Free Wet Dog FoodWet // No. 7 on the labelPedigree High Protein Chopped Ground Dinner Can, Chicken & Duck Wet Dog FoodPedigreePedigree High Protein Chopped Ground Dinner Can, Chicken & Duck Wet Dog FoodWet // No. 7 on the labelPurina ONE True Instinct Grain Free Turkey & Venison Wet Dog FoodPurinaPurina ONE True Instinct Grain Free Turkey & Venison Wet Dog FoodWet // No. 7 on the labelNutro Chicken Entrée Paté with Tomatoes & Carrots Grain-Free Wet Dog FoodNutroNutro Chicken Entrée Paté with Tomatoes & Carrots Grain-Free Wet Dog FoodWet // No. 7 on the label
Show 48 more
Wellness Ninety-Five Percent Turkey Dog Food Mixer or TopperWellnessWellness Ninety-Five Percent Turkey Dog Food Mixer or TopperTopper // No. 5 on the labelWellness Ninety-Five Percent Chicken Dog Food Mixer or TopperWellnessWellness Ninety-Five Percent Chicken Dog Food Mixer or TopperTopper // No. 5 on the labelWellness Ninety-Five Percent Beef Dog Food Mixer or TopperWellnessWellness Ninety-Five Percent Beef Dog Food Mixer or TopperTopper // No. 5 on the labelBlue Wilderness Senior Turkey Chicken Grill Wet Dog FoodBlueBlue Wilderness Senior Turkey Chicken Grill Wet Dog FoodWet // No. 7 on the labelBlue Wilderness - Turkey & Chicken Grill Wet Dog FoodBlueBlue Wilderness - Turkey & Chicken Grill Wet Dog FoodWet // No. 7 on the labelBlue Wilderness - Chicken & Salmon Grill Wet Dog FoodBlueBlue Wilderness - Chicken & Salmon Grill Wet Dog FoodWet // No. 7 on the labelBlue Wilderness - Duck & Chicken Grill Wet Dog FoodBlueBlue Wilderness - Duck & Chicken Grill Wet Dog FoodWet // No. 7 on the labelPurina Beneful Chicken & Carrots Loaf Wet Dog FoodPurinaPurina Beneful Chicken & Carrots Loaf Wet Dog FoodWet // No. 8 on the labelBlue Wilderness Rocky Mountain Senior Wet Dog FoodBlueBlue Wilderness Rocky Mountain Senior Wet Dog FoodWet // No. 8 on the labelWellness Complete Health Lamb & Sweet Potato Wet Dog FoodWellnessWellness Complete Health Lamb & Sweet Potato Wet Dog FoodWet // No. 8 on the labelIams 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. 8 on the labelPedigree High Protein Chopped Ground Dinner Can, Beef & Bison Wet Dog FoodPedigreePedigree High Protein Chopped Ground Dinner Can, Beef & Bison Wet Dog FoodWet // No. 8 on the labelPedigree Chopped Ground Dinner Adult Can, Chicken and Rice Dinner Wet Dog FoodPedigreePedigree Chopped Ground Dinner Adult Can, Chicken and Rice Dinner Wet Dog FoodWet // No. 8 on the labelRoyal Canin Veterinary Health Nutrition Canine Renal Support Early Consult loaf in sauce Wet Dog FoodRoyal CaninRoyal Canin Veterinary Health Nutrition Canine Renal Support Early Consult loaf in sauce Wet Dog FoodWet // No. 8 on the labelRoyal Canin Canine Care Nutrition Sensitive Skin Care Loaf in Sauce Wet Dog FoodRoyal CaninRoyal Canin Canine Care Nutrition Sensitive Skin Care Loaf in Sauce Wet Dog FoodWet // No. 8 on the labelBlue Basics Grain Free Adult Duck Potato Recipe Wet Dog FoodBlueBlue Basics Grain Free Adult Duck Potato Recipe Wet Dog FoodWet // No. 8 on the labelBlue Delights Porterhouse Savory Juices Wet Dog FoodBlueBlue Delights Porterhouse Savory Juices Wet Dog FoodWet // No. 8 on the labelNutro Limited Ingredient Diet Turkey & Potato Recipe Grain-Free Wet Dog FoodNutroNutro Limited Ingredient Diet Turkey & Potato Recipe Grain-Free Wet Dog FoodWet // No. 8 on the labelNutro Limited Ingredient Diet Lamb & Potato Recipe Grain-Free Wet Dog FoodNutroNutro Limited Ingredient Diet Lamb & Potato Recipe Grain-Free Wet Dog FoodWet // No. 8 on the labelPurina Beneful Beef & Peas Loaf Wet Dog FoodPurinaPurina Beneful Beef & Peas Loaf Wet Dog FoodWet // No. 9 on the labelRoyal Canin Comfort Care Loaf in Sauce Wet Dog FoodRoyal CaninRoyal Canin Comfort Care Loaf in Sauce Wet Dog FoodWet // No. 9 on the labelDave’s Pet Food Naturally Healthy Chicken & Rice Entrée For Dogs / Wet Dog FoodDave's Pet FoodDave’s Pet Food Naturally Healthy Chicken & Rice Entrée For Dogs / Wet Dog FoodWet // No. 9 on the labelWellness Complete Health Turkey & Sweet Potato Wet Dog FoodWellnessWellness Complete Health Turkey & Sweet Potato Wet Dog FoodWet // No. 9 on the labelWellness CORE Beef, Venison & Lamb Grain-Free Wet Dog FoodWellnessWellness CORE Beef, Venison & Lamb Grain-Free Wet Dog FoodWet // No. 9 on the labelBlue Wilderness Beef & Chicken with Grains Wet Dog FoodBlueBlue Wilderness Beef & Chicken with Grains Wet Dog FoodWet // No. 9 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. 9 on the labelWellness Complete Health Paté Chicken & Sweet Potato Wet Dog FoodWellnessWellness Complete Health Paté Chicken & Sweet Potato Wet Dog FoodWet // No. 9 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. 9 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. 9 on the labelPedigree Chopped Ground Dinner Adult Can, Turkey & Bacon Wet Dog FoodPedigreePedigree Chopped Ground Dinner Adult Can, Turkey & Bacon Wet Dog FoodWet // No. 9 on the labelPurina Pro Plan Complete Essentials Adult Chicken & Rice Entrée Classic Wet Dog FoodPurinaPurina Pro Plan Complete Essentials Adult Chicken & Rice Entrée Classic Wet Dog FoodWet // No. 9 on the labelBlue Wilderness Snake River Grill Wet Dog FoodBlueBlue Wilderness Snake River Grill Wet Dog FoodWet // No. 9 on the labelEdgard & Cooper Chicken & Duck Puppy Grain-Free Wet Dog FoodEdgard & CooperEdgard & Cooper Chicken & Duck Puppy Grain-Free Wet Dog FoodWet // No. 10 on the labelEdgard & Cooper Tins Chicken & Turkey Adult Dog Grain-Free Wet Dog FoodEdgard & CooperEdgard & Cooper Tins Chicken & Turkey Adult Dog Grain-Free Wet Dog FoodWet // No. 10 on the labelGravy Train Meaty Ground Dinner With Beef & Bacon Wet Dog FoodGravy TrainGravy Train Meaty Ground Dinner With Beef & Bacon Wet Dog FoodWet // No. 10 on the labelCesar Classic Loaf in Sauce Chicken & Liver Wet Dog FoodCesarCesar Classic Loaf in Sauce Chicken & Liver Wet Dog FoodWet // No. 10 on the labelCesar Classic Loaf in Sauce Grilled Chicken Wet Dog FoodCesarCesar Classic Loaf in Sauce Grilled Chicken Wet Dog FoodWet // No. 10 on the labelRoyal Canin Weight Care Loaf in Sauce Wet Dog FoodRoyal CaninRoyal Canin Weight Care Loaf in Sauce Wet Dog FoodWet // No. 10 on the labelRoyal Canin Shih Tzu Loaf In Sauce Wet Dog FoodRoyal CaninRoyal Canin Shih Tzu Loaf In Sauce Wet Dog FoodWet // No. 10 on the labelRachael Ray Nutrish Real Chicken & Apple Recipe Whole Health Blend Premium Paté Wet Dog FoodRachael Ray NutrishRachael Ray Nutrish Real Chicken & Apple Recipe Whole Health Blend Premium Paté Wet Dog FoodWet // No. 10 on the labelWellness Core Turkey & Chicken Liver Grain-Free Wet Dog FoodWellnessWellness Core Turkey & Chicken Liver Grain-Free Wet Dog FoodWet // No. 10 on the labelAuthority Everyday Health Chicken & Rice Entree Senior 7+ Wet Dog FoodAuthorityAuthority Everyday Health Chicken & Rice Entree Senior 7+ Wet Dog FoodWet // No. 10 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. 10 on the labelPedigree Chopped Ground Dinner Adult Can, Filet Mignon Wet Dog FoodPedigreePedigree Chopped Ground Dinner Adult Can, Filet Mignon Wet Dog FoodWet // No. 10 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. 10 on the labelPedigree Puppy Chopped Ground Dinner, Chicken & Beef Wet Dog FoodPedigreePedigree Puppy Chopped Ground Dinner, Chicken & Beef Wet Dog FoodWet // No. 10 on the labelRoyal Canin Breed Health Nutrition Boxer Adult Loaf in Sauce Wet Dog FoodRoyal CaninRoyal Canin Breed Health Nutrition Boxer Adult Loaf in Sauce Wet Dog FoodWet // No. 10 on the labelRoyal Canin Breed Health Nutrition French Bulldog Loaf In Sauce Wet Dog FoodRoyal CaninRoyal Canin Breed Health Nutrition French Bulldog Loaf In Sauce Wet Dog FoodWet // No. 10 on the label

Leaving it out

Foods without carrageenan

For owners who skip carrageenan: popular wet foods priced like the ones that list it ($2.33 to $4.67 per lb), with no carrageenan on the label.

Zignature Original Food Zssential Formula Grain-Free Wet Dog FoodZignatureZignature Original Food Zssential Formula Grain-Free Wet Dog FoodWet // $3.32 per lbZignature Original Food Trout & Salmon Formula Grain-Free Wet Dog FoodZignatureZignature Original Food Trout & Salmon Formula Grain-Free Wet Dog FoodWet // $3.32 per lbMerrick Real Texas Beef Grain Free Wet Dog FoodMerrickMerrick Real Texas Beef Grain Free Wet Dog FoodWet // $3.27 per lbNutriSource Prairie Select Grain-Free Wet Dog FoodNutriSourceNutriSource Prairie Select Grain-Free Wet Dog FoodWet // $3.26 per lbMerrick Grain Free Limited Ingredient Lamb Wet Dog FoodMerrickMerrick Grain Free Limited Ingredient Lamb Wet Dog FoodWet // $3.45 per lbInstinct Original Grain-Free Wet Dog FoodInstinctInstinct Original Grain-Free Wet Dog FoodWet // $3.47 per lbGentle Giants Natural Non GMO Ingredients Grain Free Dog and Puppy Food Gentle Giants ‘Quality of Life’ 90% Salmon -Dog and Pupp Wet Dog FoodGentle GiantsGentle Giants Natural Non GMO Ingredients Grain Free Dog and Puppy Food Gentle Giants ‘Quality of Life’ 90% Salmon -Dog and Pupp Wet Dog FoodWet // $3.17 per lbSolid Gold Hund-N-Flocken Lamb Wet Dog FoodSolid GoldSolid Gold Hund-N-Flocken Lamb Wet Dog FoodWet // $3.12 per lb

Checked against the ingredient list we store for each food. Labels change, so read the bag before you buy.

Sources

What we read

Checked October 1, 2026.

  1. 1 Selected gelling agents in canned dog food affect nutrient digestibilities and fecal characteristics of ileal cannulated dogs Archives of Animal Nutrition, 2002 // Journal
  2. 2 Safety and efficacy of a feed additive consisting of semi-refined carrageenan for cats and dogs (Gel Systems Ltd.) EFSA Journal, 2023 // Journal
  3. 3 The Effects of Select Hydrocolloids on the Processing of Pâté-Style Canned Pet Food Foods, 2021 // Journal
  4. 4 Carrageenan Joint FAO/WHO Expert Committee on Food Additives, 2006 // Regulator
  5. 5 Re-evaluation of carrageenan (E 407) and processed Eucheuma seaweed (E 407a) as food additives EFSA Journal, 2018 // Journal
  6. 6 Prospects for seaweed production in developing countries - 3. The seaweed industry Food and Agriculture Organization of the United Nations, 2002 // Government
  7. 7 2026 Technical Report (Limited Scope) - Carrageenan - Handling U.S. Department of Agriculture, 2026 // Government
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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