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Ingredient file // Preservative

Organic Celery Juice Concentrate

Nitrite with a vegetable name, not a vegetable

Organic celery juice concentrate is celery juice boiled down until its natural nitrate is concentrated, used mainly to cure meat under organic and natural rules. In a dog topper it adds celery flavor and, once converted by bacteria, nitrite, but no meaningful vegetable nutrition.

Role in the food Does a job
What it is
Celery juice with most of its water removed, used in natural and organic products as a plant source of nitrate.
Made from
Organically grown celery, juiced and concentrated
Main job
Natural curing agent, plus flavor
Typical amount
Fractions of a percent; meat trials used 0.2 to 0.4%
Watch for
Still delivers nitrite despite natural or uncured claims
Not the same as
Fresh celery or celery seed

Straight answer

Is Organic Celery Juice Concentrate safe for dogs?

Read it as a curing agent, not produce

Next to salt and a meat or broth, near the end of the list, it is a cure or a flavoring in a small dose. Treat uncured and no nitrites added as marketing, keep the topper a topping, and judge the food by its main ingredients.

Why it is in the food
Natural curing agent, plus flavor

Our read // In our catalog

In 1 of every 3,204 foods we track

Share of foods that list it

<1%

1 of the 3,204 foods with an ingredient list on file, from 1 brand. All dog food topper.

Each square is 1% of the catalog

Where it sits on the label

Median position 4. In the top five of 1 food, so it is usually a main 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.

Who leans on it

100%

of the foods that list it are from Castor & Pollux. 1 brand use it in total.

What it is

How it is made

Natural and organic meat makers cannot add purified sodium nitrite, so they cure with high-nitrate vegetables instead. Celery is a common choice: its juice is concentrated, and bacteria turn its nitrate into the nitrite that does the curing.1,2,4,5

  1. 01 // Source Organic celery Celery is among the vegetables that carry more than 2,500 mg nitrate per kg, which is why curers use it.
  2. 02 // Process Juiced and concentrated Juice is pressed from the stalks and much of the water is evaporated, concentrating the nitrate and celery flavor compounds.
  3. 03 // Process Cultured Nitrate-reducing bacteria turn nitrate into nitrite, either inside the meat during a holding step or beforehand at the supplier.
  4. 04 // Output Concentrate or powder Sold as liquid or dried powder. Pre-converted celery powders tested at about 17,000 to 22,500 ppm nitrite equivalent.

What is in it

Composition, as fed

17,262

ppm nitrite

Nitrite, as sodium nitrite equivalent, measured in a pre-converted organic celery powder. Organic does not mean nitrite-free.

Nitrite, organic celery powder 17,262 mg/kg2
Nitrite, conventional celery powder 22,487 mg/kg2
Nitrite, label declarations 20,250-24,750 mg/kg2
Nitrite, commercial celery powder spec 2.1%6

These figures are for dried, pre-converted powders. A liquid concentrate holds more water, and unconverted juice carries nitrate, not nitrite. We found no published analysis of its protein, fat or fiber.1,2

Why it is in the bag

A curing agent and flavor, not a vegetable

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

Makers add it to cure and flavor meat products under natural and organic rules, which bar chemical preservatives. With a starter culture, its nitrate becomes nitrite that gives cured color and flavor. Ham trials used about 0.20%, because 0.35% tasted of vegetables. At doses like that it likely adds no useful vegetable nutrition and no bulk, so it is a working additive, not filler.1,3

  1. 01

    Cures without listed nitrite

    Organic and natural products cannot use chemical preservatives. Celery's nitrate, reduced to nitrite by a starter culture, gives typical cured color and flavor instead.1

  2. 02

    Meets organic rules

    The USDA National Organic Program does not permit purified nitrite, so organic meat processors have to cure with plant ingredients such as celery or Swiss chard.2

  3. 03

    Adds celery flavor

    Celery's phthalides, such as senkyunolide and sedanolide, give it its aroma. In a broth topper that flavor is probably part of the point. In cured ham, 0.35% gave noticeable vegetable off-flavor.2,3

How much In ham trials, vegetable juice powder at 0.20% matched sodium nitrite for sensory scores, while 0.35% left an unwanted vegetable flavor.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

    Natural nitrates cure meat and block spoilage bacteria

    Outruns the evidence

    Evidence

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

    With a starter culture it cures. In 2007 trials, ham at 0.20% matched sodium nitrite controls, and in sausage every treatment except the 0.20%/30-minute one also matched, since incubation time mattered more than dose. Reviewers call its antibotulinal effect unclear.3,4,7

  2. Brands say

    Adds vegetable goodness to your dog's food

    Outruns the evidence

    Evidence

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

    Celery is safe for dogs and carries some fiber and vitamins, per the AKC. A concentrate used at fractions of a percent, with the fiber juiced out, delivers none of it in a useful amount, and no dog study has tested it.3,11

  3. Critics say

    Nitrite in dog food causes cancer

    Outruns the evidence

    Evidence

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

    IARC classes processed meat as carcinogenic in people, and nitrite reacts with amines to form nitrosamines. In one sausage study, more celery powder meant more of the nitrosamine NPIP. No study has looked at cancer in dogs from cured toppers.5,6

  4. Brands say

    No nitrates or nitrites added

    Outruns the evidence

    Evidence

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

    Consumer Reports tested 31 deli meats and found uncured products carried nitrate and nitrite at levels similar to conventionally cured ones. In 2020 FSIS said it would bar the claim for any nitrite source, celery included.8,9

  5. Owners say

    Natural nitrite is safer than synthetic

    Outruns the evidence

    Evidence

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

    Once formed, nitrite from celery is the same compound as nitrite from a curing salt. In a fermented sausage study, celery powder left NDMA unchanged but raised NPIP as its share rose, so the natural source showed no safety edge.6,8

Straight answers

What owners ask

  1. Q01

    Is it just filler?

    No

    It goes in at fractions of a percent, too little to pad a recipe. Its jobs are curing, through nitrite, and celery flavor. Neither adds bulk or calories.3

  2. Q02

    Why is celery in a broth topper?

    Flavor or cure

    Celery flavors a broth, and its nitrate fixes color and slows spoilage only after bacteria convert it to nitrite. Unconverted, it is mostly flavor. The label does not say which version was used.1,2

  3. Q03

    Does organic mean no nitrite?

    No

    Organic rules ban purified nitrite, not nitrite itself. A pre-converted organic celery powder tested at 17,262 ppm nitrite equivalent, against 22,487 for a conventional one. Same chemistry, somewhat lower dose.2

Who uses it

Brands, best sellers and the company it keeps

Top brands, by foods that list it

  1. Castor & Pollux 1 / 20

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

Usually listed with, share of the foods that list it

  1. Chicken Broth 100%
  2. Salt 100%
  3. Natural Flavor 100%
  4. Turmeric 100%

On the shelf

Foods that list Organic Celery Juice Concentrate

1 food in our catalog lists it, highest on the label first.

Sources

What we read

Checked October 1, 2026.

  1. 1 Cured meat products without direct addition of nitrate or nitrite: what are the issues? Meat Science, 2007 // Journal
  2. 2 Characterization of Volatilized Compounds in Conventional and Organic Vegetable-Source Alternative Meat-Curing Ingredients Molecules, 2025 // Journal
  3. 3 Effects of varying levels of vegetable juice powder and incubation time on color, residual nitrate and nitrite, pigment, pH, and trained sensory attributes of ready-to-eat uncured ham Journal of Food Science, 2007 // Journal
  4. 4 Effects of vegetable juice powder concentration and storage time on some chemical and sensory quality attributes of uncured, emulsified cooked sausages Journal of Food Science, 2007 // Journal
  5. 5 Nitrites in Cured Meats, Health Risk Issues, Alternatives to Nitrites: A Review Foods, 2022 // Journal
  6. 6 Using Celery Powder in a Semi-Dry Fermented Sausage "Heat-Treated Sucuk": Nitrosamine Formation, Lipid Oxidation, and Volatile Compounds Foods, 2024 // Journal
  7. 7 Microbiological safety of processed meat products formulated with low nitrite concentration: a review Asian-Australasian Journal of Animal Sciences, 2018 // Journal
  8. 8 Consumer Reports & CSPI petition USDA to end misleading labels on processed meats Consumer Reports, 2019 // Nonprofit
  9. 9 FSIS partially grants CSPI petition on nitrate/nitrite claims Hogan Lovells, 2020 // Industry
  10. 10 21 CFR 573.700 Sodium nitrite Legal Information Institute, Cornell Law School (U.S. Code of Federal Regulations), n.d. // Government
  11. 11 Can Dogs Eat Celery? Benefits, Risks, and Serving Tips American Kennel Club, 2026 // Nonprofit
  12. 12 ISU Takes Protection of Organic Products to Next Level The Pig Site, 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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