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Purina Pro Plan Veterinary Diets NF Kidney Function Wet Dog Food, 13.3-oz, case of 12
Purina Pro Plan Veterinary Diets

NF Kidney Function Wet Dog Food, 13.3-oz, case of 12

Evidence Fair
AAFCO compliance inferred from product name
wet $5.81/lb

Purina Pro Plan Veterinary Diets NF Kidney Function Wet Dog Food, 13.3-oz, case of 12 earns a Sniff Score of 31/100 (D) with Fair evidence. 3 controversial ingredients flagged. Score capped at 64 due to 3 WATCH ingredients.

Graded by The Sniff System

Why this score

Quality fat sources: named fat with marine oil (EPA and DHA source).

FQI

AAFCO feeding trial substantiation for not stated.

ACF

Includes egg, named fish, or organ meat for diverse high-bioavailability protein.

STACK

Score capped at 64 due to 3 WATCH ingredients.

CAP why?

Score capped at 49 due to CP_DM=14.6%, CF_DM=21.2%.

CAP why?

Low protein quality. meat by-products delivers limited bioavailable amino acids.

PQI

Controversial ingredients · 2

  • meat by-products
    Unspecified species. AAFCO definition allows organs, blood, bone. but the lack of a named source means quality and consistency are not auditable.
  • carrageenan
    Seaweed-derived thickener; some studies link it to gastrointestinal inflammation. Most common in wet foods but appears in some kibble gravies.

Every flagged ingredient has a published basis (confirmed harm / regulatory action / precautionary). See methodology →

Guaranteed analysis
Dry-matter protein: 15% ⓘ
Protein
3.8%
min (as fed)
Fat
5.5%
min (as fed)
Fiber
2%
max (as fed)
Moisture
74%
max

Wet and fresh foods contain more water than kibble (typically 65-78%). On a dry-matter basis, this food's protein content is roughly 15%, comparable to premium kibble (typically 30-45% DMB protein).

Ingredients

Read why each ingredient is good or bad for dogs.

36 total
Good Neutral Watch Flagged
  1. 1
    water sufficient for processing

    The regulatory phrase for cooking water in wet food. Has no nutritional implication, just labeling formality.

  2. 2
    meat by-products Flagged

    Unnamed organ meats and tissue. Could be nutritious, but no species is listed, so quality varies by batch.

  3. 3
    rice

    Generic rice. Could be white or brown, the label doesn't say. Brown rice would be specified if it were.

  4. 4
    corn grits
  5. 5
    beef

    Real meat. Dense in protein and iron. Some dogs are sensitive to it, but for most it's an excellent base.

  6. 6
    liver

    Generic liver, usually chicken or beef. Among the most nutrient-dense ingredients a dog can eat. Named species is more informative.

  7. 7
    chicken by-products
  8. 8
    animal fat

    Unnamed fat source. The species matters: 'chicken fat' or 'beef fat' is fine, but 'animal fat' tells you nothing about origin.

  9. 9
    calcium sulfate

    Source of calcium. Functional, required for AAFCO-complete formulas.

  10. 10
    guar gum

    Thickener common in wet food. Emerging research on emulsifiers and the gut microbiome, but no smoking gun in dogs yet.

  11. 11
    fish oil

    Concentrated omega-3s. The reason 'EPA' and 'DHA' get to show up on the bag.

  12. 12
    potassium citrate

    Source of potassium. Sometimes added in urinary-support formulas to help manage urine pH.

  13. 13
    locust bean gum

    Thickener from carob seed. Generally well-tolerated. Less controversial than carrageenan or guar gum.

  14. 14
    carrageenan Flagged

    Seaweed-derived thickener. Some lab studies suggest gut inflammation, but the evidence in pets is mixed.

  15. 15
    potassium chloride

    Required mineral. Sometimes used as a salt substitute. Standard inclusion in complete diets.

  16. 16
    magnesium sulfate

    Source of magnesium, a required mineral. Standard inclusion in complete diets.

  17. 17
    choline chloride

    Essential nutrient for liver and brain function. Standard inclusion in complete dog foods.

  18. 18
    natural smoke flavor
  19. 19
    vitamin e supplement

    Required nutrient and a natural antioxidant. Often pulls double duty as a preservative.

  20. 20
    dl-methionine

    Essential amino acid. Often added when plant proteins dominate, since methionine is naturally lower in pulses than meat.

  21. 21
    zinc sulfate

    Inorganic zinc. Effective at AAFCO doses but less well-absorbed than chelated forms like zinc proteinate.

  22. 22
    ferrous sulfate

    Inorganic iron. Standard mineral source. Iron proteinate is the gentler, better-absorbed premium form.

  23. 23
    niacin supplement

    B vitamin (B3). Required in complete dog foods, added as a supplement to standardize the dose.

  24. 24
    thiamine mononitrate

    B vitamin (B1). Essential for nervous system function. Cooked-in vitamin loss is why thiamine is always added back.

  25. 25
    calcium pantothenate

    Same as d-calcium pantothenate. Vitamin B5 in standardized form.

Showing first 25 of 36. Position 1-5 has the largest weight in the recipe.

22 of 25 ingredients have a curated note. Coverage grows over time.