Hill's Prescription Diet K/D Kidney Care With Chicken Dry Dog Food Royal Canin Canine Urinary SO + Hydrolyzed Protein Dry Dog Food
Compare ingredients, guaranteed analysis, and AAFCO nutritional adequacy, side by side.
Hill's Prescription Diet K/D Kidney Care With Chicken Dry Dog Food and Royal Canin Canine Urinary SO + Hydrolyzed Protein Dry Dog Food compared
| Attribute |
Verified Aug 26, 2026 |
Verified Jun 11, 2026 |
|---|---|---|
KibbleLab scoreThe KibbleLab expert rating, 0 to 10, based on published veterinary science. |
Not listed | Not listed |
| Guaranteed analysis (as fed) | ||
ProteinGuaranteed analysis gives label minimums and maximums, not measured values, shown as fed. |
Not listed | 18.00% |
| Fat | Not listed | 13.00% |
| Fiber | 1.50% | 3.90% |
| Calcium | 0.79% | 0.73% |
| Phosphorus | 0.29% | 0.70% |
| Omega-3 | 0.85% | Not listed |
MoistureHigher moisture means a wetter food; it dilutes the other percentages above. |
Not listed | 10.00% |
| Calories | 3991 kcal/kg | 3592 kcal/kg |
| Calorie density | Moderate | Moderate |
| Ingredients | ||
Full ingredient listEvery ingredient on each label, in order of weight. |
Brewers Rice, Chicken Fat, Brown Rice, Whole Grain Sorghum, Chicken, Dried Beet Pulp, Egg Product, Hydrolyzed Chicken Flavor, Corn Protein Meal, Fish Oil, Pork Liver Flavor, Calcium Carbonate, Lactic Acid, Soybean Oil, L-Lysine, Potassium Chloride, Betaine, Whole Grain Oats, DL-Methionine, Fructooligosaccharides (FOS), vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Calcium Pantothenate, Pyridoxine Hydrochloride, Vitamin A Supplement, Riboflavin Supplement, Biotin, Vitamin B12 Supplement, Folic Acid, Vitamin D3 Supplement), Potassium Citrate, Choline Chloride, L-Threonine, Iodized Salt, Taurine, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), L-Tryptophan, L-Carnitine, Magnesium Oxide, Mixed Tocopherols for freshness, Natural Flavors, Beta-Carotene. Show full list Show less |
Brewers rice, hydrolyzed soy protein, chicken fat, natural flavors dried chicory root, salt, vegetable oil, pea fiber, fish oil, calcium sulfate, potassium chloride, sodium silico aluminate, monocalcium phosphate, fructooligosaccharides, taurine, vitamins [DL-alpha tocopherol acetate (source of vitamin E), niacin supplement, D-calcium pantothenate, biotin, pyridoxine hydrochloride (vitamin B6), riboflavin supplement, thiamine mononitrate (vitamin B1), vitamin A acetate, vitamin B12 supplement, folic acid], choline chloride, DL-methionine, N-butyric acid, trace minerals [zinc proteinate, zinc oxide, manganese proteinate, manganous oxide, copper sulfate, ferrous sulfate, sodium selenite, copper proteinate, calcium iodate], GLA safflower oil, marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid. Show full list Show less |
| Limited ingredient | No | No |
| Marketed benefits | Kidney care, Appetite support, Urinary care, Digestive health | Urinary care, Allergy support |
| Format & suitability | ||
| Food type | Dry | Dry |
| Texture | Kibble | Kibble |
| Processing | Not listed | Not listed |
| Life stage | Adult | Adult |
| Breed size | All Breed Sizes | All Breed Sizes |
| AAFCO nutritional adequacy | ||
Complete & balancedWhether the manufacturer's label claims the food meets AAFCO nutrient profiles for a life stage. Not an independent test. |
Yes | Not indicated |
| Life stages | Adult Maintenance | Not listed |
SubstantiationHow adequacy was established. Feeding trials are the higher bar; formulation means the recipe is calculated to meet the profile. |
Feeding Trials | Not listed |
| Maker standards | ||
WSAVA guidelinesThe World Small Animal Veterinary Association publishes criteria for evaluating a manufacturer: qualified nutritionists on staff, feeding trials, and published research. It does not certify or endorse brands. |
Yes | Yes |
PSC accreditedThe Pet Sustainability Coalition is a nonprofit that accredits pet companies on their environmental and social impact through third-party verification. It reflects sustainability practices, not food quality. |
Yes | No |
| Recalls & where to buy | ||
Recalls on recordWe track the FDA's animal food recall listings back to January 2019 and publish every pet food recall automatically. A filing that isn't pet food may not appear here. |
None | None |
| Where to buy | ||
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Shared ingredients
Both foods list these among their top ingredients, by label weight.
- Brewer's Rice
- Chicken Fat
- Fish Oil
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Common Questions
Do these two foods share ingredients?
Yes. They share these top ingredients: Brewer's Rice, Chicken Fat, Fish Oil.
Are both foods AAFCO complete and balanced?
Hill's Prescription Diet K/D Kidney Care With Chicken Dry Dog Food is labeled complete and balanced; Royal Canin Canine Urinary SO + Hydrolyzed Protein Dry Dog Food does not list an AAFCO status.
See the full profiles: Hill's Prescription Diet K/D Kidney Care With Chicken Dry Dog Food and Royal Canin Canine Urinary SO + Hydrolyzed Protein Dry Dog Food .
KibbleLab provides informational content only. This is not veterinary advice. Always consult a qualified veterinarian before changing your pet's diet.
This is a neutral, factual comparison, not a ranking or an endorsement of either product. A food's guaranteed analysis gives legal minimums and maximums for a few nutrients, not measured values. No one can pay for placement or a higher score.
Product details are compiled from public sources and may not reflect the latest formulation. Represent one of these brands? Request a correction. Anyone else can email us.
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