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Diamond Maintenance Adult Dry Cat Food Royal Canin Hair & Skin Care Dry Cat Food

Royal Canin Hair & Skin Care Dry Cat Food scores higher on KibbleLab, 8.3 to 7.4. Compare ingredients, guaranteed analysis, and AAFCO nutritional adequacy, side by side.

Diamond Maintenance Adult Dry Cat Food and Royal Canin Hair & Skin Care Dry Cat Food compared

Nutrients:
As Fed
Diamond Maintenance Adult Dry Cat Food
Diamond Maintenance Adult Dry Cat Food

Verified Jul 20, 2026

Royal Canin Hair & Skin Care Dry Cat Food
Royal Canin Hair & Skin Care Dry Cat Food

Verified Jul 21, 2026

KibbleLab score The KibbleLab expert rating, 0 to 10, based on published veterinary science.
7.4 / 10 8.3 / 10
Guaranteed analysis (as fed)
Protein Guaranteed analysis gives label minimums and maximums, not measured values, shown as fed.
30.00% 31.00%
Fat 15.00% 20.00%
Fiber 3.00% 6.60%
Calcium 1.20% Not listed
Phosphorus 1.00% Not listed
Omega-3 0.40% 0.51%
Omega-6 2.40% 2.96%
Taurine 0.10% Not listed
Moisture Higher moisture means a wetter food; it dilutes the other percentages above.
10.00% 7.50%
Calories 3630 kcal/kg 3981 kcal/kg
Calorie density Moderate Moderate
Ingredients
Full ingredient list Every ingredient on each label, in order of weight.
Chicken by-product meal, whole grain ground corn, wheat flour, chicken fat (preserved with mixed tocopherols), dried yeast, natural flavor, dried plain beet pulp, sodium bisulfate, potassium chloride, salt, DL-Methionine, taurine, choline chloride, dried Lactobacillus plantarum fermentation product, dried Bacillus subtilis fermentation product, dried Lactobacillus acidophilus fermentation product, dried Enterococcus faecium fermentation product, dried Bifidobacterium animalis fermentation product, zinc proteinate, vitamin E supplement, niacin, manganese proteinate, copper proteinate, zinc sulfate, manganese sulfate, copper sulfate, thiamine mononitrate, vitamin A supplement, biotin, potassium iodide, calcium pantothenate, riboflavin, pyridoxine hydrochloride, vitamin B12 supplement, sodium selenite, vitamin D3 supplement, folic acid. Show full list
Chicken by-product meal, chicken fat, corn, wheat gluten, brewers rice, natural flavors, pea fiber, wheat, corn gluten meal, vegetable oil, dried plain beet pulp, fish oil, calcium sulfate, sodium pyrophosphate, potassium chloride, choline chloride, rice flour, taurine, salt, DL-methionine, 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, vitamin B12 supplement, folic acid, vitamin D3 supplement], L-cystine, GLA safflower oil, trace minerals [zinc proteinate, zinc oxide, ferrous sulfate, manganese proteinate, manganous oxide, copper sulfate, sodium selenite, calcium iodate, copper proteinate], marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid. Show full list
Limited ingredient No No
Health focus Skin coat health, Probiotic support, Digestive health, Immune support Skin coat health
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.
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.

  • Chicken By-Product
  • Chicken Fat
  • Natural Flavor

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Common Questions

Which food scores higher on KibbleLab?

Royal Canin Hair & Skin Care Dry Cat Food scores higher, 8.3 to 7.4 out of 10. Scores reflect published veterinary science.

Do these two foods share ingredients?

Yes. They share these top ingredients: Chicken By-Product, Chicken Fat, Natural Flavor.

Are both foods AAFCO complete and balanced?

Yes, both foods are labeled AAFCO complete and balanced.

See the full profiles: Diamond Maintenance Adult Dry Cat Food and Royal Canin Hair & Skin Care 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.