Adult Selected Protein Potato & White Fish Large Breed Formula Dry Dog Food, 26.4-lb bag
Graded by The Sniff System
Royal Canin Veterinary Diet Adult Selected Protein Potato & White Fish Large Breed Formula is a dry food for adult large breed dogs, with fish as the primary protein.
This formula includes quality fat sources, like coconut oil, and marine oil for EPA and DHA. It also uses quality carbohydrate sources with declared fiber. The food has AAFCO feeding trial substantiation for adult maintenance.
The main thing to watch is that this is a plant-protein-dominated formula, with potato listed as the first ingredient.
Good fit for adult large breed dogs who may need a specific protein source. Less ideal if you prefer a meat-first formula.
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. Fish meal anchors position 2, with zero pulses in the top 15, plus added taurine at position 12. 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 If you find a citation that's wrong, outdated, or misapplied, tell us.
Sniff scored this formula 47/100, landing in C-tier (acceptable-with-notes). The biggest contributor was fat quality (+12 points): Quality fat sources: named fat with marine oil (EPA and DHA source). The biggest detractor was protein quality (-24 points): Plant-protein-dominated formula. potato as the #1 ingredient.
Quality fat sources: named fat with marine oil (EPA and DHA source).
Quality carbohydrate sources with declared fiber.
AAFCO feeding trial substantiation for adult maintenance.
Plant-protein-dominated formula. potato as the #1 ingredient.
- Lowest protein quality in Royal Canin Veterinary Diet's lineup (1.2/27)
- Top quartile for carb quality in grain-free dry kibbles (12/16)
- Bottom 2% for fat quality in Royal Canin Veterinary Diet's lineup (12/16)
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.
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Scores 13 points higher with a similar formulation profile.
Royal Canin Veterinary Diet Adult Urinary SO Dry Dog Food, 25.3-lb bag
$5.06/lb vs your seed's $6.25/lb (19% less) at a comparable score.
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.
- 1vegetablepotato
Standard white potato. Steady carb source, common starch in grain-free recipes.
Position 1: meaningful whole-food inclusion. Source of vitamins, antioxidants, or natural fiber.
- 2protein animalfish meal
Concentrated fish protein, usually whitefish, herring, or mackerel. Strong amino acid profile. See why →
Position 2: co-primary protein. Two named animal proteins in the top 2 is a strong protein build.
- 3fatcoconut oil
Saturated fat with medium-chain triglycerides. Mostly marketing in the doses kibble uses, but harmless.
Position 3: primary fat source. Drives the formula's caloric density and omega-6 content.
- 4protein plantpotato protein
Concentrated potato protein. Like pea protein, it inflates the protein number without matching meat-quality amino acids.
Position 4: plant protein in the top 5. Stacked with animal protein, can inflate the crude protein number without matching the amino-acid quality of named animal sources.
- 5othernatural flavors
Same as natural flavor. Usually hydrolyzed liver or broth, adds palatability.
- 6vegetable oil
Unnamed plant oil. Could be soy, canola, corn, or a blend. Named oils like sunflower or canola are more transparent.
Position 6: secondary fat. Often where marine oils sit when present alongside a primary land-animal fat.
- 7mineralcalcium carbonate
Source of calcium. Functional. Required in complete dog foods, especially those without bone-in meat meals.
- 8l-tyrosine
- 9monocalcium phosphate
Source of calcium and phosphorus. Standard mineral inclusion in complete dog foods.
- 10supplementcholine chloride
Essential nutrient for liver and brain function. Standard inclusion in complete dog foods.
- 11supplementdl-methionine
Essential amino acid. Often added when plant proteins dominate, since methionine is naturally lower in pulses than meat.
- 12supplementtaurine
Amino acid critical for heart health. Especially important in grain-free or pulse-heavy formulas where natural taurine precursors run thin.
- 13mineralsalt
Sodium chloride. Required at small doses for normal physiology. Not a quality concern in standard amounts.
- 14mineralpotassium chloride
Required mineral. Sometimes used as a salt substitute. Standard inclusion in complete diets.
- 15fatfish oil
Concentrated omega-3s. The reason 'EPA' and 'DHA' get to show up on the bag.
Position 15. Trace marine oil. Contributes some omega-3 but well below the level that drives EPA/DHA totals.
- 16mineralzinc proteinate
Zinc bound to protein for better absorption. The premium form of the mineral, versus zinc oxide which sits cheaper on the label.
- 17zinc oxide
Inorganic zinc. Cheapest mineral form on the market. Functional but less bioavailable than chelated alternatives.
- 18mineralferrous sulfate
Inorganic iron. Standard mineral source. Iron proteinate is the gentler, better-absorbed premium form.
- 19mineralmanganese proteinate
Manganese bound to protein for better absorption. The chelated form most premium brands use.
- 20manganous oxide
Inorganic manganese. Functional, cheaper than chelated forms, less efficiently absorbed.
- 21mineralcopper sulfate
Inorganic copper. Standard, effective at small doses. Premium formulas tend to use copper proteinate instead.
- 22mineralcopper proteinate
Copper bound to protein for better absorption. Common in better-formulated diets.
- 23mineralcalcium iodate
Source of iodine for thyroid function. Functional, required in complete formulas.
- 24supplementglucosamine hydrochloride
Joint-support compound. Most useful in larger doses for older dogs. The kibble dose is real but modest.
- 25supplementchondroitin sulfate
Showing first 25 of 27. Position 1-5 has the largest weight in the recipe.
23 of 25 ingredients have a curated note. Coverage grows over time.