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Nature's Logic Canine Duck & Salmon Meal Feast Dry Dog Food Nulo Challenger High-Protein Game Bird Quarry Duck, Turkey & Guinea Fowl Dry Dog Food

Both score 8.7 out of 10 on KibbleLab. Compare ingredients, guaranteed analysis, and AAFCO nutritional adequacy, side by side.

Nature's Logic Canine Duck & Salmon Meal Feast Dry Dog Food and Nulo Challenger High-Protein Game Bird Quarry Duck, Turkey & Guinea Fowl Dry Dog Food compared

Nutrients:
As Fed
Nature's Logic Canine Duck & Salmon Meal Feast Dry Dog Food
Nature's Logic Canine Duck & Salmon Meal Feast Dry Dog Food

Verified Jul 24, 2026

Nulo Challenger High-Protein Game Bird Quarry Duck, Turkey & Guinea Fowl Dry Dog Food
Nulo Challenger High-Protein Game Bird Quarry Duck, Turkey & Guinea Fowl Dry Dog Food

Verified Jul 25, 2026

KibbleLab score The KibbleLab expert rating, 0 to 10, based on published veterinary science. No one can pay for a higher score.
8.7 / 10 8.7 / 10
Guaranteed analysis (as fed)
Protein Guaranteed analysis gives label minimums and maximums, not measured values, shown as fed.
38.00% 35.00%
Fat 15.00% 18.00%
Fiber 5.00% 4.50%
Calcium Not listed 1.20%
Phosphorus Not listed 1.00%
Omega-3 Not listed 0.60%
Omega-6 Not listed 3.00%
Taurine Not listed 0.20%
Moisture Higher moisture means a wetter food; it dilutes the other percentages above.
9.00% 10.00%
Calories 3670 kcal/kg 3583 kcal/kg
Calorie density Moderate Moderate
Ingredients
Full ingredient list Every ingredient on each label, in order of weight.
Duck Meal, Millet, Turkey Meal, Chicken Fat (preserved with Mixed Tocopherols), Dehydrated Salmon, Yeast Culture, Pumpkin Seed Flour, Spray Dried Chicken Liver, Alfalfa Nutrient Concentrate, Montmorillonite Clay, Spray Dried Porcine Plasma, Dried Kelp, Menhaden Fish Meal, Dried Tomato, Almonds, Dried Chicory Root, Dried Apple, Dried Carrot, Dried Pumpkin, Dried Apricot, Dried Blueberry, Dried Spinach, Dried Broccoli, Parsley, Dried Cranberry, Dried Artichoke, Rosemary, Dried Mushroom, Dried Lactobacillus acidophilus Fermentation Product, Dried Lactobacillus casei Fermentation Product, Dried Bifidobacterium bifidum Fermentation Product, Dried Enterococcus faecium Fermentation Product, Dried Bacillus coagulans Fermentation Product, Dried Aspergillus niger Fermentation Extract, Dried Aspergillus oryzae Fermentation Extract, Dried Trichoderma longibrachiatum Fermentation Extract Show full list
Deboned Duck, Deboned Turkey, Turkey Meal, Salmon Meal, Chicken Meal, Organic Oats, Chicken Fat (preserved with Mixed Tocopherols & Citric Acid), Organic Millet, Organic Barley, Guinea Fowl, Ground Miscanthus Grass, Natural Flavor, Potassium Chloride, Calcium Carbonate, Salt, Dried Pumpkin, Dried Blueberries, Dried Spinach, Dried Chicory Root, DL-Methionine, Choline Chloride, Taurine, Zinc Proteinate, Vitamin E Supplement, Zinc Sulfate, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Iron Proteinate, 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
Limited ingredient No No
Health focus Digestive health, Probiotic support, Allergy support Probiotic support, Immune support, Digestive health, Heart care, Skin coat health, Weight management
Format & suitability
Food type Dry Dry
Texture Kibble Kibble
Processing Not listed Not listed
Life stage All Life Stages Puppy, 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 All Life Stages
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.
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 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.

  • Duck
  • Millet
  • Turkey
  • Chicken Fat
  • Mixed Tocopherol
  • Salmon

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Common Questions

Which food scores higher on KibbleLab?

Both foods score 8.7 out of 10 on KibbleLab.

Do these two foods share ingredients?

Yes. They share these top ingredients: Duck, Millet, Turkey, Chicken Fat, Mixed Tocopherol, Salmon.

Are both foods AAFCO complete and balanced?

Yes, both foods are labeled AAFCO complete and balanced.

See the full profiles: Nature's Logic Canine Duck & Salmon Meal Feast Dry Dog Food and Nulo Challenger High-Protein Game Bird Quarry Duck, Turkey & Guinea Fowl 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.