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Diamond Naturals Grain-Free Chicken & Sweet Potato Formula Dry Dog Food, 28-lb bag
Diamond Naturals

Grain-Free Chicken & Sweet Potato Formula Dry Dog Food, 28-lb bag

Evidence Fair
AAFCO compliance inferred from product name
dry $1.86/lb

Diamond Naturals Grain-Free Chicken & Sweet Potato Formula Dry Dog Food, 28-lb bag earns a Sniff Score of 67/100 (B) with Fair evidence. 1 controversial ingredient flagged. Reasonable protein quality. chicken delivers solid amino acid coverage..

Graded by The Sniff System

Why this score

Reasonable protein quality. chicken delivers solid amino acid coverage.

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

Contains high legume stacking. Multiple pulse-family ingredients in top 15. Mitigated by taurine supplementation or organ meat (natural taurine precursor) in top 10..

CIP

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: 27% ⓘ
Protein
24%
min (as fed)
Fat
14%
min (as fed)
Fiber
5%
max (as fed)
Moisture
10%
max
Ingredients

Read why each ingredient is good or bad for dogs.

47 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
    sweet potato

    Complex carb with fiber and beta-carotene. Gentle on the stomach.

  4. 4
    peas

    Cheap protein bulk. Fine in small amounts, but when peas stack with lentils and chickpeas in the top ingredients, it's the pattern the FDA flagged in its heart-disease investigation. See why →

  5. 5
    lentils

    Same concern as peas. Affordable plant protein, but when they pile up in the top 5 ingredients, it's a flag. See why →

  6. 6
    pea flour

    Powdered peas, usually used as a binder or filler. Counts toward the legume stack the FDA flagged.

  7. 7
    chicken fat

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

  8. 8
    dried tomato pomace

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

  9. 9
    natural flavor

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

  10. 10
    fish meal

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

  11. 11
    flaxseed

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

  12. 12
    salmon oil

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

  13. 13
    salt

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

  14. 14
    dl-methionine

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

  15. 15
    choline chloride

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

  16. 16
    taurine

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

  17. 17
    dried chicory root

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

  18. 18
    yucca schidigera extract

    Plant extract added to reduce stool odor. Functional, not nutritional. Fine in trace amounts.

  19. 19
    tomatoes

    Real fruit. Lycopene and trace antioxidants. Different from tomato pomace, which is the fiber byproduct.

  20. 20
    blueberries

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

  21. 21
    raspberries
  22. 22
    dried lactobacillus plantarum fermentation product
  23. 23
    dried bacillus subtilis fermentation product
  24. 24
    dried lactobacillus acidophilus fermentation product

    A probiotic strain. Whether the dose is high enough to actually colonize is debated, but it's a real beneficial bacterium.

  25. 25
    dried enterococcus faecium fermentation product

Showing first 25 of 47. Position 1-5 has the largest weight in the recipe.

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