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Purina Cat Chow Cat Chow Naturals Original Dry Cat Food Royal Canin Siamese Adult Dry Cat Food

Royal Canin Siamese Adult Dry Cat Food scores higher on KibbleLab, 8.2 to 7.8. Compare ingredients, guaranteed analysis, and AAFCO nutritional adequacy, side by side.

Purina Cat Chow Cat Chow Naturals Original Dry Cat Food and Royal Canin Siamese Adult Dry Cat Food compared

Nutrients:
As Fed
Purina Cat Chow Cat Chow Naturals Original Dry Cat Food
Purina Cat Chow Cat Chow Naturals Original Dry Cat Food

Verified Jul 19, 2026

Royal Canin Siamese Adult Dry Cat Food
Royal Canin Siamese Adult Dry Cat Food

Verified Jul 24, 2026

KibbleLab score The KibbleLab expert rating, 0 to 10, based on published veterinary science.
7.8 / 10 8.2 / 10
Guaranteed analysis (as fed)
Protein Guaranteed analysis gives label minimums and maximums, not measured values, shown as fed.
34.00% 35.00%
Fat 13.00% 14.00%
Fiber 3.00% 3.50%
Calcium 1.10% Not listed
Phosphorus 1.00% Not listed
Omega-3 Not listed 0.38%
Omega-6 Not listed 2.10%
Taurine 0.15% Not listed
Moisture Higher moisture means a wetter food; it dilutes the other percentages above.
12.00% 8.00%
Calories 3740 kcal/kg 3775 kcal/kg
Calorie density Moderate Moderate
Ingredients
Full ingredient list Every ingredient on each label, in order of weight.
Chicken, corn gluten meal, chicken by-product meal, rice, soybean meal, ground yellow corn, ground whole wheat, beef tallow preserved with mixed-tocopherols, salmon, natural liver flavor, calcium carbonate, phosphoric acid, salt, natural flavor, dried spinach, choline chloride, taurine, VITAMINS [Vitamin E supplement, niacin (Vitamin B-3), Vitamin A supplement, calcium pantothenate (Vitamin B-5), thiamine mononitrate (Vitamin B-1), riboflavin supplement (Vitamin B-2), Vitamin B-12 supplement, pyridoxine hydrochloride (Vitamin B-6), folic acid (Vitamin B-9), Vitamin D-3 supplement, biotin (Vitamin B-7), menadione sodium bisulfite complex (Vitamin K)], MINERALS [zinc sulfate, ferrous sulfate, manganese sulfate, copper sulfate, calcium iodate, sodium selenite], potassium chloride. Show full list
Chicken by-product meal, wheat gluten, corn, wheat, brewers rice, chicken fat, corn gluten meal, natural flavors, dried plain beet pulp, fish oil, calcium sulfate, sodium silico aluminate, potassium chloride, sodium pyrophosphate, salt, vegetable oil, fructooligosaccharides, vitamins [DL-alpha tocopherol acetate (source of vitamin E), niacin supplement, L-ascorbyl-2-polyphosphate (source of vitamin C), D-calcium pantothenate, biotin, pyridoxine hydrochloride (vitamin B6), riboflavin supplement, thiamine mononitrate (vitamin B1), vitamin A acetate, folic acid, vitamin B12 supplement, vitamin D3 supplement], choline chloride, L-lysine, hydrolyzed yeast, taurine, calcium carbonate, trace minerals [zinc oxide, zinc proteinate, ferrous sulfate, manganous oxide, manganese proteinate, copper sulfate, calcium iodate, sodium selenite, copper proteinate], marigold extract (Tagetes erecta L.), L-carnitine, magnesium oxide, rosemary extract, preserved with mixed tocopherols and citric acid. Show full list
Limited ingredient No No
Health focus Not listed Digestive health, Skin coat health, Dental care, Weight management
Format & suitability
Food type Dry Dry
Texture Kibble Kibble
Processing Not listed Not listed
Life stage All Life Stages 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 All Life Stages Adult Maintenance
Substantiation How adequacy was established. Feeding trials are the higher bar; formulation means the recipe is calculated to meet the profile.
Formulation 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.
No 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.
No No
Recalls & where to buy
Recalls on record KibbleLab began logging recalls in July 2026, so earlier recalls may not appear.
None None
Where to buy
Amazon
Amazon

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Shared ingredients

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

  • Corn Gluten
  • Chicken By-Product

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Common Questions

Which food scores higher on KibbleLab?

Royal Canin Siamese Adult Dry Cat Food scores higher, 8.2 to 7.8 out of 10. Scores reflect published veterinary science.

Do these two foods share ingredients?

Yes. They share these top ingredients: Corn Gluten, Chicken By-Product.

Are both foods AAFCO complete and balanced?

Yes, both foods are labeled AAFCO complete and balanced.

See the full profiles: Purina Cat Chow Cat Chow Naturals Original Dry Cat Food and Royal Canin Siamese Adult 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.