Large Breed Adult Lamb Meal & Rice Formula Dry Dog Food, 40-lb bag
Graded by The Sniff System
Diamond Naturals Large Breed Adult Lamb Meal & Rice Formula is a dry dog food featuring lamb meal as its primary protein source, formulated for adult large breed dogs.
This formula uses quality carbohydrate sources like brown rice, cracked pearled barley, and oatmeal, which also provide fermentable fiber. It also includes egg product, adding diverse, highly bioavailable protein to the mix. The formula is inferred to be AAFCO complete for adult maintenance.
Nothing concerning in the deck. The AAFCO statement for adult maintenance is inferred from the product description, but not explicitly published by the retailer.
Good fit for adult large breed dogs. Nothing serious working against it.
Summary written by The Sniff System from the data above. Same rubric, same drivers, expressed in English.
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) . Strong fit for active large sporting breeds, including the Golden Retriever, navigating diet-associated DCM concerns. Lamb meal anchors position 1, with zero pulses in the top 15.
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 If you find a citation that's wrong, outdated, or misapplied, tell us.
At 68/100, this formula lands in solid B territory. The lift comes from carbohydrate quality, worth 16 points to the final number: Quality carbohydrate sources with fermentable fiber. Secondary contribution comes from ingredient diversity (+5 points). Includes egg, named fish, or organ meat for diverse high-bioavailability protein. The 7-point gap to the A-tier line is concentrated in protein quality (12.5 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").
Quality carbohydrate sources with fermentable fiber.
Includes egg, named fish, or organ meat for diverse high-bioavailability protein.
AAFCO formulation inferred from declared adult maintenance. Verbatim statement not published by retailer.
No negative drivers crossed our reporting threshold.
- Bottom 10% for DMB protein in Diamond Naturals's lineup (24.4%)
- Top quartile for carb quality in dry kibbles (16/16)
- Bottom 10% for protein quality in Diamond Naturals's lineup (12.3/27)
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 10 points higher with a similar formulation profile.
Diamond Maintenance 22/12 for Moderately Active Adult Dogs Dry Food, 40-lb bag
$0.95/lb vs your seed's $1.17/lb (19% less) at a comparable score.
Diamond Naturals Large Breed Adult Chicken & Rice Formula Dry Dog Food, 40-lb bag
Chicken instead of lamb, 7 points 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 meal
Lamb cooked down to a dry concentrate. Per pound, more protein than fresh lamb. See why →
Position 1: primary protein source. After cooking removes water, this may drop in proportional weight, but it anchors the recipe.
- 2grainbrown rice
Whole grain that's easy to digest. Steady carb energy plus a little fiber.
Position 2: major carbohydrate source.
- 3cracked pearled barley
Pre-cracked pearled barley for better digestibility. Same whole-grain story.
Position 3. Pulse-family ingredient this high in the deck is a notable build choice. When stacked with other pulses in the top 10, matches the formulation pattern the FDA flagged in its diet-associated DCM investigation.
- 4grainoatmeal
Gentle on the stomach. Slow-release carbs and soluble fiber that supports stool quality.
Position 4: supporting grain. Smaller contribution to the carb deck.
- 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.
- 7grainrice
Generic rice. Could be white or brown, the label doesn't say. Brown rice would be specified if it were.
Position 7: supporting grain. Smaller contribution to the carb deck.
- 8protein animalegg product
Processed whole eggs. Same nutritional profile as fresh eggs, just shelf-stable.
Position 8: supporting protein. Modest contribution to total protein weight.
- 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.
- 10dried 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 10: functional fiber for digestion or satiety.
- 11othernatural flavor
Legal term for animal-derived flavoring, usually hydrolyzed liver or broth. Adds taste, says nothing about quality.
- 12fatflaxseed
Plant source of omega-3. Helpful for skin and coat, though dogs absorb omega-3 from fish more efficiently.
Position 12: trace fat. Below the level that materially shifts the fat profile.
- 13mineralpotassium chloride
Required mineral. Sometimes used as a salt substitute. Standard inclusion in complete diets.
- 14mineralsalt
Sodium chloride. Required at small doses for normal physiology. Not a quality concern in standard amounts.
- 15supplementdl-methionine
Essential amino acid. Often added when plant proteins dominate, since methionine is naturally lower in pulses than meat.
- 16supplementcholine chloride
Essential nutrient for liver and brain function. Standard inclusion in complete dog foods.
- 17supplementtaurine
Amino acid critical for heart health. Especially important in grain-free or pulse-heavy formulas where natural taurine precursors run thin.
- 18supplementglucosamine hydrochloride
Joint-support compound. Most useful in larger doses for older dogs. The kibble dose is real but modest.
- 19fiberdried chicory root
Natural prebiotic. Feeds beneficial gut bacteria. The same compound (inulin) used in human gut-health products.
- 20supplementl-carnitine
Amino acid derivative that helps the body convert fat into energy. Common in weight-management formulas.
- 21vegetablekale
Leafy green with antioxidants and fiber. Small dose in kibble, but it's not just for marketing.
- 22chia seed
Plant source of omega-3 and fiber. Like flaxseed, useful in trace amounts.
- 23vegetablepumpkin
Soluble fiber that supports stool quality. Mild and well-tolerated.
- 24fruitblueberries
Antioxidants, real. But the amount in any kibble is too small to do much. Mostly marketing.
- 25oranges
Showing first 25 of 60. Position 1-5 has the largest weight in the recipe.
24 of 25 ingredients have a curated note. Coverage grows over time.