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Ingredient file // Flavor

Oil of Rosemary

A fragrant oil with limited preservative proof

Oil of rosemary is the concentrated aromatic oil distilled from rosemary leaves and flowering tops. It gives kibble an herbal scent. A dog food trial tested it in an antioxidant blend, but never measured what the oil does alone.

Role in the food Does a job
Oil of Rosemary
What it is
The fragrant essential oil separated from rosemary leaves and flowering tops during distillation.
Made from
Rosemary leaves and flowering tops
Main job
Herbal flavor
Typical amount
Not published
Watch for
Do not add bottled essential oil
Not the same as
Rosemary extract

Straight answer

Is Oil of Rosemary safe for dogs?

Read it as flavor, then check the fats

Oil of rosemary belongs near the end of an ingredient list. Check which fats the food uses and whether other antioxidants are listed. The oil's presence alone does not tell you how well the food resists rancidity or how long an opened bag stays fresh.

Why it is in the food
Herbal flavor

Our read // In our catalog

In 1 of every 25 foods we track

Share of foods that list it

4%

126 of the 3,204 foods with an ingredient list on file, from 2 brands. 120 dry dog food, 4 frozen dog food, 1 dog food topper.

Each square is 1% of the catalog

Where it sits on the label

Median position 66. In the top five of 0 foods, so it is usually a minor ingredient.

Top five List position, heaviest first

Above the salt

0%

Usually listed after the salt, which caps it at roughly 1% of the recipe in 100% of foods.

Price per lb

Foods with it $2.90
All foods $3.25

Median of the cheapest bag price across 105 priced foods, 11% below the catalog. The price is the food's, not the ingredient's.

Who leans on it

95%

of the foods that list it are from Blue. 2 brands use it in total.

What it is

How it is made

Rosemary harvested for its fragrant leaves also supplies essential oil. Distillation carries volatile compounds away from the plant, leaving the bulk of the leaves behind. The condensed oil is separated for use as a flavoring.1,2,4

  1. 01 // Source Rosemary tops Leaves and flowering stems contain the volatile compounds responsible for rosemary's scent.
  2. 02 // Process Steam distilled Steam carries those compounds out of the plant material and into a cooling system.
  3. 03 // Process Oil separated The vapor condenses, and the essential oil is separated from the water.
  4. 04 // Output Rosemary oil The concentrated oil is measured into food or its fat coating as a flavoring.

What is in it

Composition, dry matter

37.1

% cineole

Average cineole by weight across 3 water-free rosemary oil samples. This aromatic compound is part of the oil's flavor, not a nutrient guarantee.

1,8-cineole 37.1%3
Camphor 15.8%3
Alpha-pinene 11.4%3

These are means from 3 rosemary samples from one Pakistan collection, each analyzed in triplicate. Growing conditions change the oil's chemical profile, so the figures do not describe every batch.3

Why it is in the bag

There for flavor, in amounts too small to nourish

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

Makers add it as a flavoring. EFSA classes rosemary oil as a sensory additive and accepted its flavor role without further testing. EFSA assessed it at milligrams per kilogram of feed, and ingredient lists run from most to least by weight, so it often sits near the end and likely supplies no meaningful nutrient. One dog food trial used it in a preservative blend with clove and oregano oils and vitamin E, but did not test the oil alone.1,2,6

  1. 01

    Adds herbal aroma

    Distillation concentrates rosemary's volatile scent compounds. Feed assessors classify the oil as a flavoring, allowing a measured addition without adding bulky leaves.2,4

  2. 02

    Joins antioxidant blends

    A dog food trial added rosemary oil with clove oil, oregano oil and vitamin E to the fat coating. The blend preserved the food, but the trial did not isolate rosemary oil's contribution.1

  3. 03

    Takes little recipe space

    EFSA assessed milligram amounts per kilogram of complete feed for dogs. The oil is dosed sparingly, and the reviewed sources show no cost advantage over other flavorings.2

How much EFSA assessed 20.8 mg/kg of complete feed for dogs as unlikely to cause harm; that is a safety assessment, not a typical US recipe amount.2

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

    Rosemary oil keeps kibble fats fresh

    Outruns the evidence

    Evidence

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

    In a 10-beagle trial, food oxidation measures matched BHT-treated food for a blend of rosemary, clove and oregano oils plus vitamin E. Rosemary oil was never tested alone, so its own share of the effect is unknown.1

  2. Brands say

    Rosemary oil gives dogs antioxidant protection

    Outruns the evidence

    Evidence

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

    A 10-beagle trial found lower blood markers of oxidation after dogs ate a blend of oils and vitamin E. A laboratory test also found 59.1% inhibition of oil oxidation. Neither result assigns a health benefit to rosemary oil alone.1,3

  3. Brands say

    Rosemary oil kills harmful bacteria in food

    Outruns the evidence

    Evidence

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

    Researchers tested the oil against 8 bacterial strains using plate and broth assays and found inhibition. They did not test whether the small amount used in finished dog food prevents contamination.3

  4. Owners say

    Rosemary oil in kibble causes seizures

    Outruns the evidence

    Evidence

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

    EFSA judged 20.8 mg/kg of complete feed unlikely to harm dogs. That assessment was not a seizure trial. General warnings about concentrated essential oil exposures do not show that measured rosemary oil in kibble triggers seizures.2,7

Straight answers

What owners ask

  1. Q01

    Is it just filler?

    No

    It has a flavoring job and takes up very little recipe space. At the amounts assessed for feed, it supplies no meaningful protein, fiber or other nutrient.2

  2. Q02

    Is it rosemary extract?

    No

    The oil is distilled for volatile aroma compounds. Antioxidant rosemary extracts are made with solvents and assessed for carnosic acid and carnosol. Evidence for those extracts says nothing about the oil's preservative effect.4

  3. Q03

    Why is it near the end?

    Small addition

    Ingredient lists run from most to least by weight. Flavorings are minor additions, so rosemary oil belongs near the end. Its position does not tell you how long an opened bag will resist rancidity.2,6

  4. Q04

    Should seizure-prone dogs avoid it?

    No evidence

    The reviewed evidence does not link rosemary oil at assessed feed levels to seizures in dogs. US rules recognize rosemary essential oil for its intended use, and EFSA assessed a measured feed level. Neither finding supports adding bottled oil to food.2,5,7

Who uses it

Brands, best sellers and the company it keeps

Top brands, by foods that list it

  1. Blue 120 / 186
  2. Edgard & Cooper 6 / 11

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

Amazon best sellers that list it

  1. #1 Blue Life Protection Formula Adult Chicken and Brown Rice Recipe Dry Dog Food
  2. #5 Blue Life Protection Formula Adult Small Breed Chicken and Brown Rice Recipe Dry Dog Food
  3. #27 Blue Life Protection Formula Senior Chicken and Brown Rice Recipe Dry Dog Food
  4. #30 Blue Life Protection Formula Puppy Chicken and Brown Rice Recipe Dry Dog Food
  5. #35 Blue Life Protection Formula Small Breed Senior Chicken and Brown Rice Recipe Dry Dog Food
  6. #51 Blue Wilderness Adult Chicken plus Grains Recipe 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. Peas 75%
  2. Natural Flavor 57%
  3. Chicken Meal 56%
  4. Pea Protein 54%
  5. Pea Starch 52%
  6. Chicken 50%
  7. Flaxseed 48%
  8. Oatmeal 48%
  9. Dried Tomato Pomace 47%
  10. Chicken Fat 46%
  11. Mixed Tocopherols 46%
  12. Brown Rice 44%

On the shelf

Foods that list Oil of Rosemary

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

Blue Boo Bits Chicken Recipe Soft Dog TreatsBlueBlue Boo Bits Chicken Recipe Soft Dog TreatsDog Treats // No. 16 on the labelBlue Meal Makers Bacon Style Dog Food TopperBlueBlue Meal Makers Bacon Style Dog Food TopperTopper // No. 37 on the labelEdgard & Cooper Free-Run Duck with Venison Adult Dog Grain-Free Dry Dog FoodEdgard & CooperEdgard & Cooper Free-Run Duck with Venison Adult Dog Grain-Free Dry Dog FoodDry // No. 48 on the labelEdgard & Cooper Atlantic Salmon Adult Dog Dry Dog FoodEdgard & CooperEdgard & Cooper Atlantic Salmon Adult Dog Dry Dog FoodDry // No. 48 on the labelBlue Basics Limited Ingredient Diet Small Breed Adult Dog Grain-Free Lamb and Potato Recipe Dry Dog FoodBlueBlue Basics Limited Ingredient Diet Small Breed Adult Dog Grain-Free Lamb and Potato Recipe Dry Dog FoodDry // No. 61 on the labelBlue Basics Limited Ingredient Diet Small Breed Adult Turkey and Potato Recipe Dry Dog FoodBlueBlue Basics Limited Ingredient Diet Small Breed Adult Turkey and Potato Recipe Dry Dog FoodDry // No. 61 on the label
Show 54 more
Blue Natural Veterinary Diet HF Hydrolyzed for Food Intolerance Grain-Free Dry Dog FoodBlueBlue Natural Veterinary Diet HF Hydrolyzed for Food Intolerance Grain-Free Dry Dog FoodDry // No. 49 on the labelEdgard & Cooper Free-Run Chicken & Duck Puppy Dry Dog FoodEdgard & CooperEdgard & Cooper Free-Run Chicken & Duck Puppy Dry Dog FoodDry // No. 50 on the labelEdgard & Cooper Free-Run Chicken Adult Dog Dry Dog FoodEdgard & CooperEdgard & Cooper Free-Run Chicken Adult Dog Dry Dog FoodDry // No. 50 on the labelBlue Natural Veterinary Diet NP Novel Protein Alligator Grain-Free Dry Dog FoodBlueBlue Natural Veterinary Diet NP Novel Protein Alligator Grain-Free Dry Dog FoodDry // No. 50 on the labelEdgard & Cooper Chicken & Salmon Dog Grain-Free Dry Dog FoodEdgard & CooperEdgard & Cooper Chicken & Salmon Dog Grain-Free Dry Dog FoodDry // No. 51 on the labelEdgard & Cooper Farm-Raised Lamb Adult Dog Grain-Free Dry Dog FoodEdgard & CooperEdgard & Cooper Farm-Raised Lamb Adult Dog Grain-Free Dry Dog FoodDry // No. 52 on the labelBlue Love Made Fresh Chicken Stew Adult Dog Meat Roll Frozen Dog FoodBlueBlue Love Made Fresh Chicken Stew Adult Dog Meat Roll Frozen Dog FoodFrozen // No. 55 on the labelBlue Love Made Fresh Chicken Stew Small Breed Dog Meat Roll Frozen Dog FoodBlueBlue Love Made Fresh Chicken Stew Small Breed Dog Meat Roll Frozen Dog FoodFrozen // No. 56 on the labelBlue Love Made Fresh Beef Stew Small Breed Dog Meat Roll Frozen Dog FoodBlueBlue Love Made Fresh Beef Stew Small Breed Dog Meat Roll Frozen Dog FoodFrozen // No. 56 on the labelBlue Love Made Fresh Beef Stew Adult Dog Meat Roll Frozen Dog FoodBlueBlue Love Made Fresh Beef Stew Adult Dog Meat Roll Frozen Dog FoodFrozen // No. 56 on the labelBlue True Solutions Small Breed Care Chicken & Oatmeal Recipe for Small Breed Adult Dogs Dry Dog FoodBlueBlue True Solutions Small Breed Care Chicken & Oatmeal Recipe for Small Breed Adult Dogs Dry Dog FoodDry // No. 58 on the labelBlue Life Protection Formula Beef Recipe Dry Dog FoodBlueBlue Life Protection Formula Beef Recipe Dry Dog FoodDry // No. 58 on the labelBlue Carnivora Puppy Large Breed Woodland Blend Dry Dog FoodBlueBlue Carnivora Puppy Large Breed Woodland Blend Dry Dog FoodDry // No. 59 on the labelBlue Carnivora Puppy Woodland Blend Dry Dog FoodBlueBlue Carnivora Puppy Woodland Blend Dry Dog FoodDry // No. 59 on the labelBlue Life Protection Formula Puppy Chicken and Brown Rice Recipe Dry Dog FoodBlueBlue Life Protection Formula Puppy Chicken and Brown Rice Recipe Dry Dog FoodDry // No. 60 on the labelBlue Life Protection Formula Adult Dog Grain-Free Lamb Recipe Dry Dog FoodBlueBlue Life Protection Formula Adult Dog Grain-Free Lamb Recipe Dry Dog FoodDry // No. 60 on the labelBlue Carnivora Adult Large Breed Woodland Blend Dry Dog FoodBlueBlue Carnivora Adult Large Breed Woodland Blend Dry Dog FoodDry // No. 60 on the labelBlue Carnivora Adult Small Breed Woodland Blend Grain-Free Dry Dog FoodBlueBlue Carnivora Adult Small Breed Woodland Blend Grain-Free Dry Dog FoodDry // No. 60 on the labelBlue Carnivora Adult Woodland Blend Weight Control Dry Dog FoodBlueBlue Carnivora Adult Woodland Blend Weight Control Dry Dog FoodDry // No. 60 on the labelBlue Carnivora Adult Woodland Blend Grain-Free Dry Dog FoodBlueBlue Carnivora Adult Woodland Blend Grain-Free Dry Dog FoodDry // No. 60 on the labelBlue Carnivora Adult Coastal Blend Dry Dog FoodBlueBlue Carnivora Adult Coastal Blend Dry Dog FoodDry // No. 60 on the labelBlue Carnivora Adult Prairie Blend Dry Dog FoodBlueBlue Carnivora Adult Prairie Blend Dry Dog FoodDry // No. 60 on the labelBlue Life Protection Formula Adult Fish and Brown Rice Recipe Dry Dog FoodBlueBlue Life Protection Formula Adult Fish and Brown Rice Recipe Dry Dog FoodDry // No. 60 on the labelBlue Life Protection Formula Adult Dog Grain-Free Chicken Recipe Dry Dog FoodBlueBlue Life Protection Formula Adult Dog Grain-Free Chicken Recipe Dry Dog FoodDry // No. 61 on the labelBlue Wilderness Adult Chicken-Free Lamb Recipe Dry Dog FoodBlueBlue Wilderness Adult Chicken-Free Lamb Recipe Dry Dog FoodDry // No. 61 on the labelBlue Wilderness Puppy Chicken-Free Lamb Recipe Dry Dog FoodBlueBlue Wilderness Puppy Chicken-Free Lamb Recipe Dry Dog FoodDry // No. 61 on the labelBlue Basics Limited Ingredient Diet Adult Turkey and Potato Recipe Dry Dog FoodBlueBlue Basics Limited Ingredient Diet Adult Turkey and Potato Recipe Dry Dog FoodDry // No. 61 on the labelBlue Baby BLUE Chicken & Brown Rice Large-Breed Puppy Dry Dog FoodBlueBlue Baby BLUE Chicken & Brown Rice Large-Breed Puppy Dry Dog FoodDry // No. 62 on the labelBlue Basics Limited Ingredient Diet Adult Grain-Free Lamb and Potato Recipe Dry Dog FoodBlueBlue Basics Limited Ingredient Diet Adult Grain-Free Lamb and Potato Recipe Dry Dog FoodDry // No. 62 on the labelBlue Basics Limited Ingredient Diet Puppy Turkey and Potato Recipe Dry Dog FoodBlueBlue Basics Limited Ingredient Diet Puppy Turkey and Potato Recipe Dry Dog FoodDry // No. 62 on the labelBlue Basics Limited Ingredient Diet Senior Turkey and Potato Recipe Dry Dog FoodBlueBlue Basics Limited Ingredient Diet Senior Turkey and Potato Recipe Dry Dog FoodDry // No. 63 on the labelBlue Basics Limited Ingredient Diet Adult Grain-Free Salmon and Potato Recipe Dry Dog FoodBlueBlue Basics Limited Ingredient Diet Adult Grain-Free Salmon and Potato Recipe Dry Dog FoodDry // No. 63 on the labelBlue Basics Limited Ingredient Diet Adult Dog Grain-Free Turkey & Potato Recipe Dry Dog FoodBlueBlue Basics Limited Ingredient Diet Adult Dog Grain-Free Turkey & Potato Recipe Dry Dog FoodDry // No. 63 on the labelBlue Basics Limited Ingredient Diet Adult Grain-Free Duck and Potato Recipe Dry Dog FoodBlueBlue Basics Limited Ingredient Diet Adult Grain-Free Duck and Potato Recipe Dry Dog FoodDry // No. 63 on the labelBlue Basics Limited Ingredient Diet Adult Dog Grain-Free Salmon and Potato Recipe Dry Dog FoodBlueBlue Basics Limited Ingredient Diet Adult Dog Grain-Free Salmon and Potato Recipe Dry Dog FoodDry // No. 63 on the labelBlue Basics Limited Ingredient Diet Large Breed Adult Turkey and Potato Recipe Dry Dog FoodBlueBlue Basics Limited Ingredient Diet Large Breed Adult Turkey and Potato Recipe Dry Dog FoodDry // No. 64 on the labelBlue Wilderness Small Bite Chicken Wholesome Grain Recipe Dry Dog FoodBlueBlue Wilderness Small Bite Chicken Wholesome Grain Recipe Dry Dog FoodDry // No. 65 on the labelBlue Natural Veterinary Diet GI Gastrointestinal Support Dry Dog FoodBlueBlue Natural Veterinary Diet GI Gastrointestinal Support Dry Dog FoodDry // No. 65 on the labelBlue Basics Limited Ingredient Diet Large Breed Adult Grain-Free Lamb and Potato Dry Dog FoodBlueBlue Basics Limited Ingredient Diet Large Breed Adult Grain-Free Lamb and Potato Dry Dog FoodDry // No. 65 on the labelBlue Wilderness Rocky Mountain Recipe Adult Bison Grain-Free Dry Dog FoodBlueBlue Wilderness Rocky Mountain Recipe Adult Bison Grain-Free Dry Dog FoodDry // No. 65 on the labelBlue Wilderness Rocky Mountain Recipe Adult Rabbit Grain-Free Dry Dog FoodBlueBlue Wilderness Rocky Mountain Recipe Adult Rabbit Grain-Free Dry Dog FoodDry // No. 65 on the labelBlue Wilderness Adult Small Breed Healthy Weight Chicken Recipe Grain-Free Dry Dog FoodBlueBlue Wilderness Adult Small Breed Healthy Weight Chicken Recipe Grain-Free Dry Dog FoodDry // No. 65 on the labelBlue Wilderness Adult Small Bite Chicken Recipe Grain-Free Dry Dog FoodBlueBlue Wilderness Adult Small Bite Chicken Recipe Grain-Free Dry Dog FoodDry // No. 65 on the labelBlue Wilderness Small Breed Adult Chicken Recipe Grain-Free Dry Dog FoodBlueBlue Wilderness Small Breed Adult Chicken Recipe Grain-Free Dry Dog FoodDry // No. 65 on the labelBlue Wilderness Toy Breed Adult Chicken Recipe Grain-Free Dry Dog FoodBlueBlue Wilderness Toy Breed Adult Chicken Recipe Grain-Free Dry Dog FoodDry // No. 65 on the labelBlue Wilderness Adult Healthy Weight Chicken Recipe Grain-Free Dry Dog FoodBlueBlue Wilderness Adult Healthy Weight Chicken Recipe Grain-Free Dry Dog FoodDry // No. 65 on the labelBlue Wilderness Adult Duck Recipe Grain-Free Dry Dog FoodBlueBlue Wilderness Adult Duck Recipe Grain-Free Dry Dog FoodDry // No. 65 on the labelBlue Wilderness Adult Chicken Recipe Grain-Free Dry Dog FoodBlueBlue Wilderness Adult Chicken Recipe Grain-Free Dry Dog FoodDry // No. 65 on the labelBlue Wilderness Adult Chicken plus Grains Recipe Dry Dog FoodBlueBlue Wilderness Adult Chicken plus Grains Recipe Dry Dog FoodDry // No. 66 on the labelBlue Life Protection Formula Salmon & Brown Rice Dry Dog FoodBlueBlue Life Protection Formula Salmon & Brown Rice Dry Dog FoodDry // No. 66 on the labelBlue Wilderness Senior Chicken-Free Lamb Recipe Dry Dog FoodBlueBlue Wilderness Senior Chicken-Free Lamb Recipe Dry Dog FoodDry // No. 66 on the labelBlue Baby Blue, High-Protein Chicken Puppy Dry Dog FoodBlueBlue Baby Blue, High-Protein Chicken Puppy Dry Dog FoodDry // No. 66 on the labelBlue True Solutions Blissful Belly Digestive Care Formula Dry Dog FoodBlueBlue True Solutions Blissful Belly Digestive Care Formula Dry Dog FoodDry // No. 66 on the labelBlue True Solutions Perfect Coat Skin and Coat Care Formula Dry Dog FoodBlueBlue True Solutions Perfect Coat Skin and Coat Care Formula Dry Dog FoodDry // No. 66 on the label

Sources

What we read

Checked October 1, 2026.

  1. 1 Addition of a blend of essential oils (cloves, rosemary and oregano) and vitamin E to replace conventional chemical antioxidants in dog feed: effects on food quality and health of beagles FAO AGRIS record of Archives of Animal Nutrition, 2021 // Database
  2. 2 Safety and efficacy of a feed additive consisting of an essential oil derived from the flowering aerial parts of Salvia rosmarinus Spenn. (rosemary oil) for use in all animal species (FEFANA asbl) EFSA Journal, 2025 // Journal
  3. 3 Rosmarinus officinalis essential oil: antiproliferative, antioxidant and antibacterial activities Brazilian Journal of Microbiology, 2010 // Journal
  4. 4 Safety and efficacy of two solvent extracts of rosemary (Rosmarinus officinalis L.) when used as feed additive for cats and dogs (Kemin Nutrisurance Europe SRL) EFSA Journal, 2022 // Journal
  5. 5 21 CFR 582.20: Essential oils, oleoresins (solvent-free), and natural extractives (including distillates) Electronic Code of Federal Regulations, 2026 // Government
  6. 6 What’s in the Ingredients List? AAFCO, n.d. // Regulator
  7. 7 Sniffing Out the Truth About Essential Oils and Pets Pet Poison Helpline, 2019 // Nonprofit
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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