Grain-Free Beef & Sweet Potato Formula Dry Dog Food, 28-lb bag
Graded by The Sniff System
Diamond Naturals Grain-Free Beef & Sweet Potato Formula Dry Dog Food is a dry food featuring beef and lamb as its main protein sources.
This formula includes quality fat sources, like salmon oil, which provides beneficial EPA and DHA. It also uses premium micronutrient forms, such as chelated minerals, for better absorption. The AAFCO formulation is inferred, suggesting it's nutritionally complete.
Several legume ingredients like peas, lentils, and pea flour appear high on the list. This 'pulse stacking' is a pattern the FDA has noted, though it's partially mitigated here by the presence of taurine supplementation or organ meat.
Good fit for adult dogs who thrive on grain-free diets. Less ideal if you prefer to avoid significant legume content.
Summary written by The Sniff System from the data above. Same rubric, same drivers, expressed in English.
The landmark 14-year Purina Lifespan Study on 48 Labrador Retrievers demonstrated that dogs fed 25% fewer calories lived a median of 1.8 years longer and delayed the onset of chronic diseases. Good fit for active large sporting breeds like Labrador Retrievers, Golden Retrievers, and English Setters navigating weight management. At 406 kcal/cup this formula runs on the rich side, with crude fiber at 5% (above the catalog median, supports satiety). The 2014 AAHA Weight Management Guidelines define overweight as a Body Condition Score (BCS) of 6-7 on a 9-point scale. A score of 8 or 9 indicates obesity, representing 20-30% and >30% above ideal body weight, respectively (Brooks et al., 2014) .
Looking at this for adult Labrador Retrievers or Labrador Retrievers with weight management ? 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.
- Brooks et al., 2014diagnostic · protocol · satiety· cited in 5 claims
- APOP, 2023prevalence
- Raffan et al., 2016genetics
Every claim on Sniff traces to a source. If you find a citation that's wrong, outdated, or misapplied, tell us.
At 61/100, this formula lands in solid B territory. The lift comes from fat quality, worth 12 points to the final number: Quality fat sources: named fat with marine oil (EPA and DHA source). Where it lost ground: controversial-ingredient penalty, costing 2 points. Contains high legume stacking. Multiple pulse-family ingredients in top 15. Mitigated by taurine supplementation or organ meat (natural taurine precursor) in top 10.
Quality fat sources: named fat with marine oil (EPA and DHA source).
AAFCO formulation inferred from declared not stated. Verbatim statement not published by retailer.
Premium micronutrient forms such as chelated minerals or natural vitamin E.
Contains high legume stacking. Multiple pulse-family ingredients in top 15. Mitigated by taurine supplementation or organ meat (natural taurine precursor) in top 10..
- Lowest carb quality in Diamond Naturals's lineup (11/16)
- Top quartile for fat quality in Diamond Naturals's lineup (12/16)
- Bottom quartile for protein quality in Diamond Naturals's lineup (13.1/27)
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 17 points higher with a similar formulation profile.
Country Vet Naturals Butcher Shop Blend Beef & Bacon Flavor Dry Dog Food, 35-lb bag
$1.31/lb vs your seed's $1.86/lb (29% less) at a comparable score.
Diamond Naturals Large Breed Adult Chicken & Rice Formula Dry Dog Food, 40-lb bag
Chicken instead of beef, 14 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 animalbeef
Real meat. Dense in protein and iron. Some dogs are sensitive to it, but for most it's an excellent base.
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.
- 3vegetablesweet potato
Complex carb with fiber and beta-carotene. Gentle on the stomach.
Position 3: meaningful whole-food inclusion. Source of vitamins, antioxidants, or natural fiber.
- 4legumepeas
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 →
Position 4. Within the FDA's top-5 DCM-pattern threshold. Especially notable if multiple pulses stack here.
- 5legumelentils
Same concern as peas. Affordable plant protein, but when they pile up in the top 5 ingredients, it's a flag. See why →
Position 5. Within the FDA's top-5 DCM-pattern threshold. Especially notable if multiple pulses stack here.
- 6legumepea flour
Powdered peas, usually used as a binder or filler. Counts toward the legume stack the FDA flagged.
Position 6. Moderate inclusion. Contributes carbohydrate and some plant protein.
- 7fatcanola oil
Plant oil. Some omega-3 from the parent plant, though dogs absorb it less efficiently than fish-derived omega-3. Fine in moderation.
Position 7: trace fat. Below the level that materially shifts the fat profile.
- 8dried tomato pomace
The fiber-rich byproduct of tomato processing. Sometimes flagged unfairly. It's a real fiber source, not a filler shortcut.
Position 8: functional fiber for digestion or satiety.
- 9protein animalfish meal
Concentrated fish protein, usually whitefish, herring, or mackerel. Strong amino acid profile. See why →
Position 9: supporting protein. Modest contribution to total protein weight.
- 10othernatural flavor
Legal term for animal-derived flavoring, usually hydrolyzed liver or broth. Adds taste, says nothing about quality.
- 11fatflaxseed
Plant source of omega-3. Helpful for skin and coat, though dogs absorb omega-3 from fish more efficiently.
Position 11: trace fat. Below the level that materially shifts the fat profile.
- 12fatsalmon oil
Pure omega-3s. The thing skin-and-coat formulas are usually built around.
Position 12. Moderate marine-oil inclusion. Supplements EPA/DHA without being the primary fat.
- 13mineralsalt
Sodium chloride. Required at small doses for normal physiology. Not a quality concern in standard amounts.
- 14supplementdl-methionine
Essential amino acid. Often added when plant proteins dominate, since methionine is naturally lower in pulses than meat.
- 15supplementcholine chloride
Essential nutrient for liver and brain function. Standard inclusion in complete dog foods.
- 16supplementtaurine
Amino acid critical for heart health. Especially important in grain-free or pulse-heavy formulas where natural taurine precursors run thin.
- 17fiberdried chicory root
Natural prebiotic. Feeds beneficial gut bacteria. The same compound (inulin) used in human gut-health products.
- 18supplementyucca schidigera extract
Plant extract added to reduce stool odor. Functional, not nutritional. Fine in trace amounts.
- 19tomatoes
Real fruit. Lycopene and trace antioxidants. Different from tomato pomace, which is the fiber byproduct.
- 20fruitblueberries
Antioxidants, real. But the amount in any kibble is too small to do much. Mostly marketing.
- 21fruitraspberries
- 22probioticdried lactobacillus plantarum fermentation product
- 23probioticdried bacillus subtilis fermentation product
- 24probioticdried 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.
- 25probioticdried 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.