Large Breed Puppy Formula Dry Dog Food, 40-lb bag
Graded by The Sniff System
Diamond Naturals Large Breed Puppy Formula Dry Dog Food is a dry food with lamb as its primary protein, formulated specifically for large breed puppies.
This formula offers good protein quality, with lamb providing solid amino acid coverage. It also includes quality carbohydrate sources with fermentable fiber, and its fat sources are well-chosen, featuring named fats and marine oil for beneficial EPA and DHA.
Nothing concerning in the deck.
Good fit for large breed puppies. 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. Lamb anchors position 1, with zero pulses in the top 15, plus fish meal at position 10. Goldens appeared disproportionately in the FDA's DCM reports. Pulse-heavy grain-free formulas warrant extra caution; named animal protein with organ meat or marine sources is the safer fit.
Looking at this for puppy 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 2 cited studies relevant to its profile. Each link opens the original source.
- FDA, 2022epidemiology · breed predisposition· cited in 4 claims
- FDA, 2019diet composition· cited in 2 claims
Every claim on Sniff traces to a source. If you find a citation that's wrong, outdated, or misapplied, tell us.
Solid grade. 74/100 (B) reflects the structural fit of this formula against The Sniff System's eight scoring components. Protein quality did the heavy lifting (+18 points): Reasonable protein quality. lamb delivers solid amino acid coverage. The supporting beat: carbohydrate quality (+16 points). Quality carbohydrate sources with fermentable fiber. What's keeping it out of A-tier: protein quality (18 of 27 possible). Full protein quality requires named-species named-cut proteins in the top of the deck (e.g., "deboned chicken" rather than "chicken meal" or "poultry meal").
Reasonable protein quality. lamb delivers solid amino acid coverage.
Quality carbohydrate sources with fermentable fiber.
Quality fat sources: named fat with marine oil (EPA and DHA source).
No negative drivers crossed our reporting threshold.
- Top quartile for DMB protein in Diamond Naturals's lineup (30.0%)
- Bottom quartile for crude fiber in Diamond Naturals's lineup (3.9% DMB)
- Top quartile for caloric density in Diamond Naturals's lineup (414 kcal/cup)
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 4 points higher with a similar formulation profile.
Diamond Naturals Beef Meal & Rice Formula Adult Dry Dog Food, 40-lb bag
$1.07/lb vs your seed's $1.37/lb (22% less) at a comparable score.
Diamond Naturals Large Breed Adult Chicken & Rice Formula Dry Dog Food, 40-lb bag
Chicken instead of lamb, 1 point higher, 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 animallamb
Real meat. Often used for dogs with chicken or beef sensitivities. Slightly higher fat content than chicken.
Position 1: primary protein source. After cooking removes water, this may drop in proportional weight, but it anchors the recipe.
- 2protein animallamb meal
Lamb cooked down to a dry concentrate. Per pound, more protein than fresh lamb. 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.
- 5grain sorghum
Same as sorghum. Whole grain with a low glycemic index. Gluten-free, well-tolerated.
Position 5: supporting grain. Smaller contribution to the carb deck.
- 6dried yeast
Natural source of B vitamins and trace minerals. Adds a savory flavor that dogs respond well to.
- 7protein animalegg product
Processed whole eggs. Same nutritional profile as fresh eggs, just shelf-stable.
Position 7: supporting protein. Modest contribution to total protein weight.
- 8fatchicken fat
Despite the name, a high-quality energy source. Concentrated calories plus essential fatty acids like linoleic acid. See why →
Position 8: trace fat. Below the level that materially shifts the fat profile.
- 9grainwhite rice
Refined grain with the bran stripped off. Easy to digest, but not as nutrient-dense as brown rice.
Position 9: minor grain inclusion.
- 10protein animalfish meal
Concentrated fish protein, usually whitefish, herring, or mackerel. Strong amino acid profile. See why →
Position 10: supporting protein. Modest contribution to total protein weight.
- 11dried tomato pomace
The fiber-rich byproduct of tomato processing. Sometimes flagged unfairly. It's a real fiber source, not a filler shortcut.
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.
- 14fatsalmon oil
Pure omega-3s. The thing skin-and-coat formulas are usually built around.
Position 14. Trace marine oil. Contributes some omega-3 but well below the level that drives EPA/DHA totals.
- 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.
- 17mineralpotassium chloride
Required mineral. Sometimes used as a salt substitute. Standard inclusion in complete diets.
- 18supplementcholine chloride
Essential nutrient for liver and brain function. Standard inclusion in complete dog foods.
- 19supplementtaurine
Amino acid critical for heart health. Especially important in grain-free or pulse-heavy formulas where natural taurine precursors run thin.
- 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 60. Position 1-5 has the largest weight in the recipe.
25 of 25 ingredients have a curated note. Coverage grows over time.