Large Breed Adult Chicken & Rice Formula Dry Dog Food, 40-lb bag
Graded by The Sniff System
Diamond Naturals Large Breed Adult Chicken & Rice Formula Dry Dog Food is a dry kibble for large breed adult dogs, primarily featuring chicken.
This formula has a strong protein profile, with chicken as the primary ingredient, offering high biological value. It also uses quality carbohydrate sources that include fermentable fiber. The combination of named fresh meat and same-species meal is a solid approach for kibble production.
Nothing concerning in the deck.
Good fit for large breed adult dogs. Nothing serious working against it.
Summary written by The Sniff System from the data above. Same rubric, same drivers, expressed in English.
Strong fit for active large sporting breeds like Golden Retrievers, Labrador Retrievers, and Irish Setters navigating diet-associated DCM concerns. Working in its favor: explicitly formulated for large-breed dogs. Chicken anchors position 1, with zero pulses in the top 15. In its 2022 update on diet-associated DCM, the FDA identified Golden Retrievers as the most reported breed, with 121 cases out of 1,382 total canine reports (8.8%) received between January 1, 2014, and November 1, 2022 (FDA, 2022) .
Looking at this for adult Golden Retrievers or Golden Retrievers with diet-associated DCM concerns ? We are building dedicated pages for these combinations.
Auto-matched from this product's measurements (ingredients, life stage, calorie density) to a breed archetype. Not a substitute for vet input on your specific dog.
Research informing this analysis
MethodologyThe Sniff System grades this product against 3 cited studies relevant to its profile. Each link opens the original source.
- FDA, 2022cardiac · epidemiology · breed predisposition· cited in 5 claims
- FDA, 2019diet composition· cited in 2 claims
- NRC, 2006nutrient bioavailability
Every claim on Sniff traces to a source. If you find a citation that's wrong, outdated, or misapplied, tell us.
Strong grade. 77/100 (A) reflects the structural fit of this formula against The Sniff System's eight scoring components. Protein quality did the heavy lifting (+21 points): Strong protein profile with chicken as the primary ingredient, delivering high biological value. The supporting beat: carbohydrate quality (+16 points). Quality carbohydrate sources with fermentable fiber.
Strong protein profile with chicken as the primary ingredient, delivering high biological value.
Quality carbohydrate sources with fermentable fiber.
Named fresh meat paired with same-species meal, a strong extrusion architecture.
No negative drivers crossed our reporting threshold.
- Top 10% for overall Sniff Score in dry kibbles (77/100)
- Bottom quartile for DMB protein in Diamond Naturals's lineup (25.6%)
- Top quartile for protein quality in Diamond Naturals's lineup (21.1/27)
Computed against the rest of our catalog. Percentiles refresh on each catalog update.
Similar dog foods worth considering
Three lenses on products with formulation profiles similar to this one.

Diamond Naturals Senior Formula Dry Dog Food, 35-lb bag
Scores 1 point higher with a similar formulation profile.

Diamond Naturals Small Breed Adult Lamb & Rice Formula Dry Dog Food, 18-lb bag
Lamb instead of chicken, 3 points lower, different brand.
Surfaced from a vector similarity search across 3,491 scored dog foods. How this works.
Read why each ingredient is good or bad for dogs.
- 1protein animalchicken
Real meat. Primary protein source, with the amino acid profile dogs actually evolved to eat.
Position 1: primary protein source. After cooking removes water, this may drop in proportional weight, but it anchors the recipe.
- 2protein animalchicken meal
Chicken with the water cooked out. Per pound, packs more protein than fresh chicken. See why →
Position 2: co-primary protein. Two named animal proteins in the top 2 is a strong protein build.
- 3grainbrown rice
Whole grain that's easy to digest. Steady carb energy plus a little fiber.
Position 3: major carbohydrate source.
- 4cracked pearled barley
Pre-cracked pearled barley for better digestibility. Same whole-grain story.
Position 4. Within the FDA's top-5 DCM-pattern threshold. Especially notable if multiple pulses stack here.
- 5grainwhite rice
Refined grain with the bran stripped off. Easy to digest, but not as nutrient-dense as brown rice.
Position 5: supporting grain. Smaller contribution to the carb deck.
- 6grainrice
Generic rice. Could be white or brown, the label doesn't say. Brown rice would be specified if it were.
Position 6: supporting grain. Smaller contribution to the carb deck.
- 7grain sorghum
Same as sorghum. Whole grain with a low glycemic index. Gluten-free, well-tolerated.
Position 7: supporting grain. Smaller contribution to the carb deck.
- 8dried yeast
Natural source of B vitamins and trace minerals. Adds a savory flavor that dogs respond well to.
- 9fatchicken fat
Despite the name, a high-quality energy source. Concentrated calories plus essential fatty acids like linoleic acid. See why →
Position 9: trace fat. Below the level that materially shifts the fat profile.
- 10protein animalegg product
Processed whole eggs. Same nutritional profile as fresh eggs, just shelf-stable.
Position 10: supporting protein. Modest contribution to total protein weight.
- 11dried plain beet pulp
Beet fiber, with the sugar removed. Long unfairly maligned. It's a real soluble fiber that supports stool quality. See why →
Position 11: trace fiber inclusion.
- 12othernatural flavor
Legal term for animal-derived flavoring, usually hydrolyzed liver or broth. Adds taste, says nothing about quality.
- 13fatflaxseed
Plant source of omega-3. Helpful for skin and coat, though dogs absorb omega-3 from fish more efficiently.
Position 13: trace fat. Below the level that materially shifts the fat profile.
- 14mineralpotassium chloride
Required mineral. Sometimes used as a salt substitute. Standard inclusion in complete diets.
- 15mineralsalt
Sodium chloride. Required at small doses for normal physiology. Not a quality concern in standard amounts.
- 16supplementdl-methionine
Essential amino acid. Often added when plant proteins dominate, since methionine is naturally lower in pulses than meat.
- 17supplementcholine chloride
Essential nutrient for liver and brain function. Standard inclusion in complete dog foods.
- 18supplementtaurine
Amino acid critical for heart health. Especially important in grain-free or pulse-heavy formulas where natural taurine precursors run thin.
- 19supplementglucosamine hydrochloride
Joint-support compound. Most useful in larger doses for older dogs. The kibble dose is real but modest.
- 20fiberdried chicory root
Natural prebiotic. Feeds beneficial gut bacteria. The same compound (inulin) used in human gut-health products.
- 21supplementl-carnitine
Amino acid derivative that helps the body convert fat into energy. Common in weight-management formulas.
- 22vegetablekale
Leafy green with antioxidants and fiber. Small dose in kibble, but it's not just for marketing.
- 23chia seed
Plant source of omega-3 and fiber. Like flaxseed, useful in trace amounts.
- 24vegetablepumpkin
Soluble fiber that supports stool quality. Mild and well-tolerated.
- 25fruitblueberries
Antioxidants, real. But the amount in any kibble is too small to do much. Mostly marketing.
Showing first 25 of 61. Position 1-5 has the largest weight in the recipe.
25 of 25 ingredients have a curated note. Coverage grows over time.