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Purina ONE Natural High Protein True Instinct with Real Chicken & Duck Dry Dog Food, 3.8-lb bag
Purina ONE

Natural High Protein True Instinct with Real Chicken & Duck Dry Dog Food, 3.8-lb bag

Evidence Fair
dry $3.23/lb

Purina ONE Natural High Protein True Instinct with Real Chicken & Duck Dry Dog Food, 3.8-lb bag earns a Sniff Score of 59/100 (C) with Fair evidence. Zero controversial ingredients flagged. Score capped at 59 due to no AAFCO statement.

Graded by The Sniff System

Why this score

Strong protein profile with chicken as the primary ingredient, delivering high biological value.

PQI

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

FQI

Named fresh meat paired with same-species meal, a strong extrusion architecture.

STACK

Score capped at 59 due to no AAFCO statement.

CAP why?

No AAFCO statement. Nutritional completeness unverified.

ACF

Controversial ingredients · 1

  • sodium selenite
    Synthetic selenium source. Selenium is essential, but sodium selenite has a narrower safety margin than organic alternatives like selenium yeast. Better-formulated foods use the organic form.

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

Guaranteed analysis
Dry-matter protein: 36% ⓘ
Protein
32%
min (as fed)
Fat
17%
min (as fed)
Fiber
14%
max (as fed)
Moisture
12%
max
Ingredients

Read why each ingredient is good or bad for dogs.

28 total
Good Neutral Watch Flagged
  1. 1
    chicken

    Real meat. Primary protein source, with the amino acid profile dogs actually evolved to eat.

  2. 2
    chicken meal

    Chicken with the water cooked out. Per pound, packs more protein than fresh chicken.

  3. 3
    soybean meal

    Concentrated soy protein. Cheap plant protein that pads the label number, common in budget formulas.

  4. 4
    wheat

    Whole wheat. Fine for most dogs, though a portion are sensitive. Not a quality concern, just a fit-for-your-dog question.

  5. 5
    beef fat preserved with mixed tocopherols
  6. 6
    corn protein meal

    Concentrated corn protein. Similar in role to corn gluten meal, pads the protein number on the label without matching meat amino acids.

  7. 7
    corn germ meal
  8. 8
    whole grain corn

    Whole corn with the kernel intact. Decent fiber and B vitamins, though it can crowd out meat in cheaper recipes.

  9. 9
    soy flour

    Refined soy. Cheap plant protein, common in budget formulas. Pads the protein percent without matching meat amino acids.

  10. 10
    duck

    Real meat. Often used as a novel protein for dogs with sensitivities to chicken or beef.

  11. 11
    beef bone broth

    Real bone broth. Adds flavor, moisture, and a small amount of collagen. Pleasant inclusion.

  12. 12
    glycerin

    Humectant used in soft-moist foods to keep them chewy. Safe in moderation but a signal of a processed semi-moist product.

  13. 13
    natural flavor

    Legal term for animal-derived flavoring, usually hydrolyzed liver or broth. Adds taste, says nothing about quality.

  14. 14
    dried egg product

    Whole eggs with the water removed. Same nutritional value as fresh eggs, just shelf-stable.

  15. 15
    fish oil

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

  16. 16
    calcium carbonate

    Source of calcium. Functional. Required in complete dog foods, especially those without bone-in meat meals.

  17. 17
    salt

    Sodium chloride. Required at small doses for normal physiology. Not a quality concern in standard amounts.

  18. 18
    mono and dicalcium phosphate

    Source of calcium and phosphorus. Standard inclusion in complete dog foods.

  19. 19
    soybean oil

    Plant oil. High in omega-6, which is required but commonly oversupplied. Fine in moderation.

  20. 20
    potassium chloride

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

  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
    manganese sulfate

    Inorganic manganese. Functional but less well-absorbed than the chelated proteinate form.

  24. 24
    copper sulfate

    Inorganic copper. Standard, effective at small doses. Premium formulas tend to use copper proteinate instead.

  25. 25
    calcium iodate

    Source of iodine for thyroid function. Functional, required in complete formulas.

Showing first 25 of 28. Position 1-5 has the largest weight in the recipe.

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