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Ingredient file // Other

Caramel Coloring

Brown color for buyers, no nutritional payoff

Caramel coloring is made by heating sugars, sometimes with sulfite or ammonium compounds. It gives kibble a browner, more consistent appearance for the person buying it. It provides no proven health benefit to the dog.

What it is
A concentrated brown food color made by heating food-grade carbohydrates and sold as a liquid or powder.
Made from
Food-grade sugars and sugar syrups
Main job
Brown, consistent appearance
Typical amount
Not published
Watch for
Class may be absent unless voluntarily disclosed
Not the same as
Candy caramel

Our read // In our catalog

In 1 of every 54 foods we track

Share of foods that list it

2%

47 of the 2,533 foods with an ingredient list on file, from 6 brands. 38 dry dog food, 9 wet dog food.

Each square is 1% of the catalog

Where it sits on the label

Median position 14. In the top five of 0 foods, so it is usually a minor ingredient.

Top five List position, heaviest first

Above the salt

25%

Usually listed after the salt, which caps it at roughly 1% of the recipe in 75% of foods.

Price per lb

Foods with it $1.54
All foods $3.23

Median of the cheapest bag price across 34 priced foods, 52% below the catalog. The price is the food's, not the ingredient's.

Who leans on it

47%

of the foods that list it are from Iams. 6 brands use it in total.

What it is

How it is made

Color makers produce caramel coloring specifically for its appearance, rather than collecting it as a leftover. They heat food-grade carbohydrates under controlled conditions, sometimes adding sulfite or ammonium compounds to make different classes.2,6

  1. 01 // Source Food-grade sugars Glucose, fructose and syrups made from them supply the carbohydrates used to make the color.
  2. 02 // Process Controlled heating Heat turns the carbohydrates into a complex mixture of brown coloring compounds.
  3. 03 // Process Class ingredients Sulfite compounds, ammonium compounds, both or neither determine the resulting caramel color class.
  4. 04 // Output Liquid or powder The finished dark liquid or solid goes to food makers, including pet food manufacturers.

What is in it

Composition, dry matter

0.5-7.5

% nitrogen

The permitted nitrogen range for Class IV color on a dry solids basis describes its chemistry, not usable protein for a dog.

Total nitrogen, Class IV 0.5-7.5%2
Total sulfur, Class IV 1.4-10%2
Total nitrogen, Class III 1.3-6.8%2
Total sulfur, Class II 1.3-2.5%2

These are specification ranges for different classes, not nutrient measurements in a particular kibble. The manufacturing ingredients change the chemistry. A bag may identify the class voluntarily, but disclosure is not required.2,5

Why it is in the bag

What the manufacturer gets

  1. 01

    Makes food look browner

    A color supplier promotes caramel coloring for a meatier appearance in pet food. The effect is visual for the buyer, with no demonstrated feeding benefit for the dog.6

  2. 02

    Keeps batches looking alike

    Base recipes differ in shade. Added caramel color helps manufacturers keep the finished food looking similar from one production run to the next.6,7

  3. 03

    Low cost color

    A supplier of competing colors describes caramel as inexpensive for the shade it delivers and stable during heat processing. Those are manufacturing advantages.7

How much A supplier's kibble pilot used 3% and 5% powdered color; those test amounts do not show what commercial recipes usually contain.6

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

    Caramel coloring makes kibble look meatier

    Evidence

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

    A supplier's extruder pilot compared uncolored kibble with powdered caramel at 3% and 5%, and the supplier describes a meatier appearance. It supports a visual effect for buyers, not a benefit to dogs.6

  2. Brands say

    Caramel coloring is safe for dogs

    Outruns the evidence

    Evidence

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

    JECFA summarized an unpublished 90-day beagle study feeding Class IV color at up to 25% of the diet without significant adverse findings. One short study of one class cannot settle lifetime safety for every class.1

  3. Critics say

    Caramel coloring causes cancer in dogs

    Outruns the evidence

    Evidence

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

    A 2-year NTP feeding study found more lung tumors in mice given isolated 4-MEI. It did not test dogs or colored kibble, and only some caramel color classes can contain 4-MEI.3,5

  4. Brands say

    Caramel coloring gives dogs antioxidant protection

    Outruns the evidence

    Evidence

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

    A Class IV study used flies and human cells. Its fly oxidative stress test found no antioxidant protection, although a separate DNA damage test showed an effect. Neither test demonstrates a benefit to dogs eating colored food.4

  5. Owners say

    Caramel coloring adds useful nutrition

    Outruns the evidence

    Evidence

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

    The FAO specification lists color as its function and reports nitrogen and sulfur as chemical specifications on a dry solids basis. Those figures do not make caramel coloring a useful protein or mineral source in kibble.2

Straight answers

What owners ask

  1. Q01

    Is it just filler?

    No, cosmetic

    It has a defined job: making food brown. It does not supply useful protein or fiber, and no dog health benefit has been shown. Judge the food's nutrition by its other ingredients and nutritional adequacy statement.2,9

  2. Q02

    Does brown kibble mean more meat?

    No

    A color supplier promotes caramel coloring to make pet food look meatier. Appearance does not tell you how much meat the recipe contains. Read the named ingredients above the color on the list.6,9

  3. Q03

    Does the label reveal its class?

    Not necessarily

    FDA does not require the class to appear on a food label, although a maker may disclose it voluntarily. Animal foods may also group caramel under a general color term. The name alone cannot identify 4-MEI exposure.5,8

Who uses it

Brands, best sellers and the company it keeps

Top brands, by foods that list it

  1. Iams 22
  2. Kibbles n Bits 11
  3. Hill's 5
  4. Purina 5
  5. Rachael Ray Nutrish 3
  6. Blue 1

Amazon best sellers that list it

  1. #10 Iams Proactive Health MiniChunks Chicken & Whole Grains Dry Dog Food
  2. #42 Iams Adult Large Breed Dry Dog Food
  3. #50 Iams Adult Minichunks with Lamb & Rice Dry Dog Food
  4. #55 Kibbles n Bits Small Breed Mini Bits Savory Beef & Chicken Flavors Dry Dog Food
  5. #59 Kibbles n Bits Original Savory Beef & Chicken Flavors Dry Dog Food
  6. #87 Iams Adult Healthy Weight Dry Dog Food

Rank on Amazon's dog food best seller list, checked October 2026.

Usually listed with, share of the foods that list it

  1. Chicken 55%
  2. Natural Flavor 49%
  3. Chicken By-Product Meal 47%
  4. Soybean Meal 47%
  5. Whole Grain Ground Corn 43%
  6. Ground Whole Grain Sorghum 43%
  7. Chicken Fat 32%
  8. Dried Beet Pulp 30%
  9. Dried Plain Beet Pulp 28%
  10. Dried Egg Product 28%
  11. Water 23%
  12. Animal Fat 23%

Our read // On the bag

Read the recipe above the color

Caramel coloring low on an ingredient list means the maker wanted a browner, more consistent look. Check the named protein and fat above it, then the nutritional adequacy statement. Choose a food without added color if you prefer, but its presence alone is not proof of harm.

On labels as

Other names for this

Manufacturers do not all use the same wording. These all mean the same thing.

Caramel Color

Sources

What we read

Checked September 1, 2026.

  1. 1 Caramel colours, Classes I,II,III, and IV WHO Food Additives Series 20, JECFA, 1987 // Regulator
  2. 2 Caramel colours FAO JECFA Monographs 11, 2011 // Regulator
  3. 3 Toxicology and Carcinogenesis Studies of 4-Methylimidazole in F344/N Rats and B6C3F1 Mice (Feed Studies) National Toxicology Program, 2007 // Government
  4. 4 Food Safety and Nutraceutical Potential of Caramel Colour Class IV Using In Vivo and In Vitro Assays Foods, 2019 // Journal
  5. 5 Questions & Answers About 4-MEI U.S. Food and Drug Administration, n.d. // Government
  6. 6 DDW Natural and Caramel Color Technical Tips Packet DDW, 2014 // Industry
  7. 7 Replacing Caramel Colors in Pet Food - Naturally! Sensient, 2025 // Industry
  8. 8 GFI #223 Small Entity Compliance Guide Declaring Color Additives In Animal Foods U.S. Food and Drug Administration, 2013 // Government
  9. 9 Reading Labels AAFCO, n.d. // Regulator
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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