Size Health Nutrition Large Puppy Dry Dog Food, 40-lb bag
Graded by The Sniff System
Royal Canin Size Health Nutrition Large Puppy Dry Dog Food is a dry formula for large breed puppies, with chicken by-product meal as its main protein source.
This formula includes quality carbohydrate sources with fermentable fiber, which is good for digestion. It also has quality fat sources, like named chicken fat and marine oil, providing beneficial EPA and DHA. Plus, it has AAFCO feeding trial substantiation for growth, which is a strong indicator of nutritional adequacy for puppies.
The main thing to watch out for is the protein quality. Chicken by-product meal, while a protein source, delivers limited bioavailable amino acids compared to other options.
Good fit for large breed puppies, especially if you value AAFCO feeding trial substantiation. Less ideal if you prefer higher quality protein sources.
Summary written by The Sniff System from the data above. Same rubric, same drivers, expressed in English.
Good fit for puppy Golden Retrievers and similar active sporting breeds navigating diet-associated DCM concerns. Chicken by-product meal anchors position 1, with zero pulses in the top 15. 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 If you find a citation that's wrong, outdated, or misapplied, tell us.
Sniff scored this formula 63/100, landing in B-tier territory. The biggest contributor was carbohydrate quality (+13 points): Quality carbohydrate sources with fermentable fiber. The biggest detractor was protein quality (-17 points): Low protein quality. chicken by-product meal delivers limited bioavailable amino acids. To reach A-tier, this formula would need to gain about 12 points, most likely through protein quality.
Quality carbohydrate sources with fermentable fiber.
Quality fat sources: named fat with marine oil (EPA and DHA source).
AAFCO feeding trial substantiation for growth.
Low protein quality. chicken by-product meal delivers limited bioavailable amino acids.
- Bottom 10% for fat quality in Royal Canin's lineup (12/16)
- Bottom quartile for crude fiber in grain-inclusive dry kibbles (4.1% DMB)
- Bottom quartile for protein quality in grain-inclusive dry kibbles (7.8/27)
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.
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 by-product meal
Ground organs, bone, and tissue. Nutritionally dense, especially the liver and gizzard fractions. Named species ('chicken') is what matters. Generic 'poultry by-product meal' is the one to worry about. See why →
Position 1: primary protein source. After cooking removes water, this may drop in proportional weight, but it anchors the recipe.
- 2graincorn
Whole corn is more nutritious than it gets credit for, with decent amino acids and steady carbs. The bigger concern is when corn dominates the top of the ingredient list at the expense of named meat.
Position 2: major carbohydrate source.
- 3grainwheat
Whole wheat. Fine for most dogs, though a portion are sensitive. Not a quality concern, just a fit-for-your-dog question.
Position 3: major carbohydrate source.
- 4fatchicken fat
Despite the name, a high-quality energy source. Concentrated calories plus essential fatty acids like linoleic acid. See why →
Position 4: secondary fat. Often where marine oils sit when present alongside a primary land-animal fat.
- 5protein plantwheat gluten
Concentrated wheat protein. Like other plant gluten meals, it pads the protein number on the label without contributing meat-quality amino acids.
Position 5: 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.
- 6brewers rice
Broken rice kernels left over from milling, usually destined for human beer-making. Cheaper than whole or even white rice. Same carbs, less nutrition than the brown version. See why →
Position 6: supporting grain. Smaller contribution to the carb deck.
- 7othernatural flavors
Same as natural flavor. Usually hydrolyzed liver or broth, adds palatability.
- 8brewers rice flour
- 9dried 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 9: functional fiber for digestion or satiety.
- 10protein plantcorn gluten meal
Concentrated corn protein. Inflates the protein percent on the label without matching meat-quality amino acids.
Position 10: moderate plant-protein boost. Less likely to materially shift the protein profile.
- 11monocalcium phosphate
Source of calcium and phosphorus. Standard mineral inclusion in complete dog foods.
- 12sodium aluminosilicate
Anti-caking agent that keeps powder ingredients flowing. Functional, not nutritional.
- 13vegetable oil
Unnamed plant oil. Could be soy, canola, corn, or a blend. Named oils like sunflower or canola are more transparent.
Position 13: trace fat. Below the level that materially shifts the fat profile.
- 14mineralsalt
Sodium chloride. Required at small doses for normal physiology. Not a quality concern in standard amounts.
- 15mineralcalcium carbonate
Source of calcium. Functional. Required in complete dog foods, especially those without bone-in meat meals.
- 16mineralpotassium chloride
Required mineral. Sometimes used as a salt substitute. Standard inclusion in complete diets.
- 17powdered psyllium seed husk
- 18fiberpea fiber
Insoluble fiber from peas. Doesn't carry the protein-inflation concern of pea protein. Mostly there for stool quality.
- 19fatfish oil
Concentrated omega-3s. The reason 'EPA' and 'DHA' get to show up on the bag.
- 20supplementtaurine
Amino acid critical for heart health. Especially important in grain-free or pulse-heavy formulas where natural taurine precursors run thin.
- 21fiberfructooligosaccharides
Prebiotic fiber, often called FOS. Feeds beneficial gut bacteria, similar in function to inulin.
- 22supplementcholine chloride
Essential nutrient for liver and brain function. Standard inclusion in complete dog foods.
- 23hydrolyzed yeast
Yeast broken down with enzymes. Strong palatant plus a real source of B vitamins and amino acids.
- 24marine microalgae oil
Plant-source omega-3 from algae. Useful especially in vegetarian or limited-fish formulas.
- 25supplementdl-methionine
Essential amino acid. Often added when plant proteins dominate, since methionine is naturally lower in pulses than meat.
Showing first 25 of 41. Position 1-5 has the largest weight in the recipe.
23 of 25 ingredients have a curated note. Coverage grows over time.