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Hill's Science Diet Adult Urinary Hairball Control Chicken & Rice Recipe Dry Cat Food Royal Canin Feline Gastrointestinal Dry Cat Food

Compare ingredients, guaranteed analysis, and AAFCO nutritional adequacy, side by side.

Hill's Science Diet Adult Urinary Hairball Control Chicken & Rice Recipe Dry Cat Food and Royal Canin Feline Gastrointestinal Dry Cat Food compared

Nutrients:
As Fed
Hill's Science Diet Adult Urinary Hairball Control Chicken & Rice Recipe Dry Cat Food
Hill's Science Diet Adult Urinary Hairball Control Chicken & Rice Recipe Dry Cat Food
Royal Canin Feline Gastrointestinal Dry Cat Food
Royal Canin Feline Gastrointestinal Dry Cat Food

Verified Aug 29, 2026

KibbleLab score The KibbleLab expert rating, 0 to 10, based on published veterinary science.
9.5 / 10 Not listed
Guaranteed analysis (as fed)
Protein Guaranteed analysis gives label minimums and maximums, not measured values, shown as fed.
Not listed 30.00%
Fat Not listed 20.00%
Fiber 9.10% 7.30%
Calcium 0.81% Not listed
Phosphorus 0.71% Not listed
Omega-3 0.70% Not listed
Omega-6 4.18% Not listed
Taurine 0.45% Not listed
Moisture Higher moisture means a wetter food; it dilutes the other percentages above.
Not listed 7.50%
Calories 3689 kcal/kg 3886 kcal/kg
Calorie density Moderate Moderate
Ingredients
Full ingredient list Every ingredient on each label, in order of weight.
Chicken, Whole Grain Wheat, Corn Protein Meal, Powdered Cellulose, Chicken Fat, Wheat Gluten, Brewers Rice, Chicken Liver Flavor, Egg Product, Chicken Meal, Dried Beet Pulp, Soybean Oil, Lactic Acid, Calcium Sulfate, Fish Oil, Choline Chloride, Potassium Chloride, L-Lysine, Flaxseed, Taurine, DL-Methionine, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Vitamin A Supplement, Calcium Pantothenate, Riboflavin Supplement, Biotin, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Folic Acid, Vitamin D3 Supplement), Potassium Citrate, Iodized Salt, Calcium Carbonate, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), L-Carnitine, L-Tryptophan, Mixed Tocopherols for freshness, Natural Flavors, Beta-Carotene. Show full list
Chicken by-product meal, chicken fat, brown rice, brewers rice, corn protein meal, powdered cellulose, wheat gluten, natural flavors, egg product, dried plain beet pulp, potassium chloride, vegetable oil, sodium aluminosilicate, fish oil, sodium pyrophosphate, calcium sulfate, sodium bisulfate, monocalcium phosphate, powdered psyllium seed husk, salt, DL-methionine, fructooligosaccharides, choline chloride, marine microalgae oil, vitamins[DL-alpha tocopherol acetate (source of vitamin E), L-ascorbyl-2-polyphosphate (source of vitamin C), niacin supplement, biotin, riboflavin supplement, D-calcium pantothenate, pyridoxine hydrochloride (vitamin B6), vitamin A acetate, thiamine mononitrate (vitamin B1), vitamin B12 supplement, folic acid, vitamin D3 supplement], hydrolyzed yeast, taurine, trace minerals[zinc proteinate, zinc oxide, manganese proteinate, ferrous sulfate, manganous oxide, copper sulfate, sodium selenite, calcium iodate, copper proteinate], magnesium oxide, marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid. Show full list
Limited ingredient No No
Marketed benefits Urinary care, Hairball control, Digestive health Digestive health, Probiotic support, High energy
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 & balanced Whether the manufacturer's label claims the food meets AAFCO nutrient profiles for a life stage. Not an independent test.
Yes Yes
Life stages Adult Maintenance Adult Maintenance
Substantiation How adequacy was established. Feeding trials are the higher bar; formulation means the recipe is calculated to meet the profile.
Feeding Trials Formulation
Maker standards
WSAVA guidelines The 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 accredited The 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 record We 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
Shop Chewy Amazon
Amazon PetSmart

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Shared ingredients

Both foods list these among their top ingredients, by label weight.

  • Corn Protein Meal
  • Cellulose Powder
  • Chicken Fat
  • Wheat Gluten
  • Brewer's Rice
  • Egg Product

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Common Questions

Do these two foods share ingredients?

Yes. They share these top ingredients: Corn Protein Meal, Cellulose Powder, Chicken Fat, Wheat Gluten, Brewer's Rice, Egg Product.

Are both foods AAFCO complete and balanced?

Yes, both foods are labeled AAFCO complete and balanced.

See the full profiles: Hill's Science Diet Adult Urinary Hairball Control Chicken & Rice Recipe Dry Cat Food and Royal Canin Feline Gastrointestinal Dry Cat 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.