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Nulo MedalSeries High-Protein Weight Management Salmon & Sweet Potato Dry Cat Food Orijen Guardian Senior Formula Dry Cat Food

Orijen Guardian Senior Formula Dry Cat Food scores higher on KibbleLab, 8.8 to 8.3. Compare ingredients, guaranteed analysis, and AAFCO nutritional adequacy, side by side.

Nulo MedalSeries High-Protein Weight Management Salmon & Sweet Potato Dry Cat Food and Orijen Guardian Senior Formula Dry Cat Food compared

Nutrients:
As Fed
Nulo MedalSeries High-Protein Weight Management Salmon & Sweet Potato Dry Cat Food
Nulo MedalSeries High-Protein Weight Management Salmon & Sweet Potato Dry Cat Food

Verified Aug 28, 2026

Orijen Guardian Senior Formula Dry Cat Food
Orijen Guardian Senior Formula Dry Cat Food

Verified Jun 3, 2026

KibbleLab score The KibbleLab expert rating, 0 to 10, based on published veterinary science.
8.3 / 10 8.8 / 10
Guaranteed analysis (as fed)
Protein Guaranteed analysis gives label minimums and maximums, not measured values, shown as fed.
40.00% 40.00%
Fat 12.00% 15.00%
Fiber 5.00% 4.00%
Calcium 1.30% 1.20%
Phosphorus 0.90% 1.00%
Omega-3 0.50% 1.30%
Omega-6 1.90% 2.50%
Taurine 0.20% 0.20%
Moisture Higher moisture means a wetter food; it dilutes the other percentages above.
10.00% 10.00%
Calories 3446 kcal/kg 3830 kcal/kg
Calorie density Moderate Moderate
Ingredients
Full ingredient list Every ingredient on each label, in order of weight.
Deboned Salmon, Turkey Meal, Chicken Meal, Dried Sweet Potatoes, Deboned Cod, Whole Peas, Green Lentils, Herring Meal, Miscanthus Grass, Chicken Fat (preserved with Mixed Tocopherols & Citric Acid), Flaxseed, Natural Salmon Flavor, Dried Chicory Root, DL-Methionine, Dried Cranberries, Dried Kelp, Calcium Carbonate, Choline Chloride, Yucca Schidigera Extract, Taurine, L-Carnitine, Zinc Proteinate, Vitamin E Supplement, Zinc Sulfate, Iron Proteinate, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Ferrous Sulfate, Copper Proteinate, Copper Sulfate, Vitamin A Supplement, Manganese Proteinate, Thiamine Mononitrate, Calcium Pantothenate, Riboflavin Supplement, Pyridoxine Hydrochloride, Manganous Oxide, Biotin, Dried Bacillus coagulans Fermentation Product, Vitamin B12 Supplement, Vitamin D3 Supplement, Folic Acid, Sodium Selenite, Calcium Iodate, Rosemary Extract. Show full list
Salmon, duck, chicken, turkey, flounder, whole herring, chicken liver, eggs, dehydrated egg, dehydrated chicken, dehydrated sardine, dehydrated chicken liver, dehydrated mackerel, turkey giblets (liver, heart, gizzard), whole red lentils, whole pinto beans, whole green peas, ground whole flaxseed, whole green lentils, whole chickpeas, whole yellow peas, whole navy beans, hydrolyzed blue whiting, hydrolyzed salmon, chicken fat, chicken hearts, whole cranberries, choline chloride, dried kelp, vitamin E supplement, mixed tocopherols (preservative), whole pumpkin, whole apples, collard greens, whole butternut squash, whole pears, zinc proteinate, dried chicory root, niacin, thiamine mononitrate, riboflavin, calcium pantothenate, pyridoxine hydrochloride, folic acid, vitamin B12 supplement, copper proteinate, turmeric, sarsaparilla root, althea root, rosehips, juniper berries, citric acid (preservative), rosemary extract, dried Lactobacillus acidophilus fermentation product, dried Bifidobacterium animalis fermentation product, dried Lactobacillus casei fermentation product. Show full list
Limited ingredient No No
Marketed benefits Weight management, Metabolic support, Antioxidant support, Eye health, Heart care, Skin coat health, Probiotic support Immune support, Digestive health, Skin coat health, Heart care, Eye health, Weight management, Joint care, Bone health, Cognitive health
Format & suitability
Food type Dry Dry
Texture Kibble Flakes
Processing Not listed Freeze Dried
Life stage Adult Adult, 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
Shop Chewy Amazon

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Shared ingredients

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

  • Salmon
  • Turkey
  • Chicken
  • Herring

Not sure which is right for your pet?

Sign in free to save favorites and compare foods side by side. Add KL+ to see Nulo MedalSeries High-Protein Weight Management Salmon & Sweet Potato Dry Cat Food and Orijen Guardian Senior Formula Dry Cat Food scored for your pet's breed, age, and health focus.

Common Questions

Which food scores higher on KibbleLab?

Orijen Guardian Senior Formula Dry Cat Food scores higher, 8.8 to 8.3 out of 10. Scores reflect published veterinary science.

Do these two foods share ingredients?

Yes. They share these top ingredients: Salmon, Turkey, Chicken, Herring.

Are both foods AAFCO complete and balanced?

Yes, both foods are labeled AAFCO complete and balanced.

See the full profiles: Nulo MedalSeries High-Protein Weight Management Salmon & Sweet Potato Dry Cat Food and Orijen Guardian Senior Formula 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.