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Diamond Naturals Large Breed Puppy Formula Dry Dog Food, 40-lb bag
Diamond Naturals

Large Breed Puppy Formula Dry Dog Food, 40-lb bag

Evidence Fair
AAFCO compliance inferred from product name
dry $1.37/lb

Diamond Naturals Large Breed Puppy Formula Dry Dog Food, 40-lb bag earns a Sniff Score of 74/100 (B) with Fair evidence. Zero controversial ingredients flagged. Reasonable protein quality. lamb delivers solid amino acid coverage..

Graded by The Sniff System

Why this score

Reasonable protein quality. lamb delivers solid amino acid coverage.

PQI

Quality carbohydrate sources with fermentable fiber.

CQI

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

FQI

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: 30%
Protein
27%
min (as fed)
Fat
15%
min (as fed)
Fiber
3.5%
max (as fed)
Moisture
10%
max
Ingredients

Read why each ingredient is good or bad for dogs.

60 total
Good Neutral Watch Flagged
  1. 1
    lamb

    Real meat. Often used for dogs with chicken or beef sensitivities. Slightly higher fat content than chicken.

  2. 2
    lamb meal

    Lamb cooked down to a dry concentrate. Per pound, more protein than fresh lamb.

  3. 3
    brown rice

    Whole grain that's easy to digest. Steady carb energy plus a little fiber.

  4. 4
    cracked pearled barley

    Pre-cracked pearled barley for better digestibility. Same whole-grain story.

  5. 5
    grain sorghum

    Same as sorghum. Whole grain with a low glycemic index. Gluten-free, well-tolerated.

  6. 6
    dried yeast

    Natural source of B vitamins and trace minerals. Adds a savory flavor that dogs respond well to.

  7. 7
    egg product

    Processed whole eggs. Same nutritional profile as fresh eggs, just shelf-stable.

  8. 8
    chicken fat

    Despite the name, a high-quality energy source. Concentrated calories plus essential fatty acids like linoleic acid.

  9. 9
    white rice

    Refined grain with the bran stripped off. Easy to digest, but not as nutrient-dense as brown rice.

  10. 10
    fish meal

    Concentrated fish protein, usually whitefish, herring, or mackerel. Strong amino acid profile.

  11. 11
    dried tomato pomace

    The fiber-rich byproduct of tomato processing. Sometimes flagged unfairly. It's a real fiber source, not a filler shortcut.

  12. 12
    natural flavor

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

  13. 13
    flaxseed

    Plant source of omega-3. Helpful for skin and coat, though dogs absorb omega-3 from fish more efficiently.

  14. 14
    salmon oil

    Pure omega-3s. The thing skin-and-coat formulas are usually built around.

  15. 15
    salt

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

  16. 16
    dl-methionine

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

  17. 17
    potassium chloride

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

  18. 18
    choline chloride

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

  19. 19
    taurine

    Amino acid critical for heart health. Especially important in grain-free or pulse-heavy formulas where natural taurine precursors run thin.

  20. 20
    dried chicory root

    Natural prebiotic. Feeds beneficial gut bacteria. The same compound (inulin) used in human gut-health products.

  21. 21
    l-carnitine

    Amino acid derivative that helps the body convert fat into energy. Common in weight-management formulas.

  22. 22
    kale

    Leafy green with antioxidants and fiber. Small dose in kibble, but it's not just for marketing.

  23. 23
    chia seed

    Plant source of omega-3 and fiber. Like flaxseed, useful in trace amounts.

  24. 24
    pumpkin

    Soluble fiber that supports stool quality. Mild and well-tolerated.

  25. 25
    blueberries

    Antioxidants, real. But the amount in any kibble is too small to do much. Mostly marketing.

Showing first 25 of 60. Position 1-5 has the largest weight in the recipe.

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