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Diamond Naturals Senior Dog Chicken, Egg & Oatmeal Formula Dry Dog Food Kirkland Signature Mature Formula Chicken, Rice & Egg Dry Dog Food

Both score 8.8 out of 10 on KibbleLab. Compare ingredients, guaranteed analysis, and AAFCO nutritional adequacy, side by side.

Diamond Naturals Senior Dog Chicken, Egg & Oatmeal Formula Dry Dog Food and Kirkland Signature Mature Formula Chicken, Rice & Egg Dry Dog Food compared

Nutrients:
As Fed
Diamond Naturals Senior Dog Chicken, Egg & Oatmeal Formula Dry Dog Food
Diamond Naturals Senior Dog Chicken, Egg & Oatmeal Formula Dry Dog Food

Verified Jul 25, 2026

Kirkland Signature Mature Formula Chicken, Rice & Egg Dry Dog Food
Kirkland Signature Mature Formula Chicken, Rice & Egg Dry Dog Food
KibbleLab score The KibbleLab expert rating, 0 to 10, based on published veterinary science.
8.8 / 10 8.8 / 10
Guaranteed analysis (as fed)
Protein Guaranteed analysis gives label minimums and maximums, not measured values, shown as fed.
25.00% 27.00%
Fat 11.00% 12.00%
Fiber 3.00% 3.00%
Calcium 1.10% 0.90%
Phosphorus 0.80% 0.70%
Omega-3 0.30% 0.40%
Omega-6 2.20% 2.20%
Taurine 0.12% Not listed
Moisture Higher moisture means a wetter food; it dilutes the other percentages above.
10.00% 10.00%
Calories 3400 kcal/kg 3529 kcal/kg
Calorie density Moderate Moderate
Ingredients
Full ingredient list Every ingredient on each label, in order of weight.
Chicken, chicken meal, whole grain brown rice, cracked pearled barley, white rice, egg product, oatmeal, rice bran, dried plain beet pulp, chicken fat (preserved with mixed tocopherols), natural flavor, flaxseed, potassium chloride, DL-Methionine, choline chloride, taurine, glucosamine hydrochloride, dried chicory root, L-Carnitine, kale, chia seed, pumpkin, blueberries, oranges, quinoa, dried kelp, coconut, spinach, carrots, papaya, yucca schidigera extract, 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, vitamin E supplement, beta carotene, chondroitin sulfate, iron proteinate, zinc proteinate, copper proteinate, ferrous sulfate, zinc sulfate, manganese sulfate, copper sulfate, potassium iodide, thiamine mononitrate, manganese proteinate, vitamin A supplement, biotin, niacin, calcium pantothenate, sodium selenite, pyridoxine hydrochloride, vitamin B12 supplement, riboflavin, vitamin D3 supplement, folic acid. Show full list
Chicken, chicken meal, whole grain brown rice, egg product, oatmeal, cracked pearled barley, ground white rice, chicken fat (preserved with mixed tocopherols), dried beet pulp, potatoes, natural chicken flavor, flaxseed, millet, fish meal, potassium chloride, choline chloride, glucosamine hydrochloride, chondroitin sulfate, carrots, peas, dried kelp, apples, cranberries, rosemary extract, parsley flakes, dried chicory root, 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, vitamin E supplement, iron proteinate, zinc proteinate, copper proteinate, ferrous sulfate, zinc sulfate, manganese sulfate, copper sulfate, potassium iodide, thiamine mononitrate, manganese proteinate, ascorbic acid, vitamin A supplement, L-Carnitine, biotin, niacin, calcium pantothenate, sodium selenite, pyridoxine hydrochloride, vitamin B 12 supplement, riboflavin, vitamin D3 supplement, folic acid Show full list
Limited ingredient No No
Marketed benefits Probiotic support, Digestive health, Joint care, Antioxidant support, Skin coat health, Immune support Joint care, Antioxidant support, Skin coat health, Immune support, Digestive health, Probiotic support
Format & suitability
Food type Dry Dry
Texture Kibble Kibble
Processing Not listed Not listed
Life stage Senior Senior
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 No
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 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
Amazon
Amazon

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Shared ingredients

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

  • Chicken
  • Brown Rice
  • Barley
  • White Rice
  • Egg Product
  • Oatmeal
  • Beet Pulp
  • Chicken Fat

Not sure which is right for your pet?

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Common Questions

Which food scores higher on KibbleLab?

Both foods score 8.8 out of 10 on KibbleLab.

Do these two foods share ingredients?

Yes. They share these top ingredients: Chicken, Brown Rice, Barley, White Rice, Egg Product, Oatmeal, Beet Pulp, Chicken Fat.

Are both foods AAFCO complete and balanced?

Yes, both foods are labeled AAFCO complete and balanced.

See the full profiles: Diamond Naturals Senior Dog Chicken, Egg & Oatmeal Formula Dry Dog Food and Kirkland Signature Mature Formula Chicken, Rice & Egg 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.