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Health Extension Grain Free Duck & Sweet Potato Recipe Dry Dog Food NutriSource Grain Free Prairie Select Dry Dog Food

Both score 8.2 out of 10 on KibbleLab. Compare ingredients, guaranteed analysis, and AAFCO nutritional adequacy, side by side.

Health Extension Grain Free Duck & Sweet Potato Recipe Dry Dog Food and NutriSource Grain Free Prairie Select Dry Dog Food compared

Nutrients:
As Fed
Health Extension Grain Free Duck & Sweet Potato Recipe Dry Dog Food
Health Extension Grain Free Duck & Sweet Potato Recipe Dry Dog Food

Verified Jul 27, 2026

NutriSource Grain Free Prairie Select Dry Dog Food
NutriSource Grain Free Prairie Select Dry Dog Food

Verified Aug 23, 2026

KibbleLab score The KibbleLab expert rating, 0 to 10, based on published veterinary science.
8.2 / 10 8.2 / 10
Guaranteed analysis (as fed)
Protein Guaranteed analysis gives label minimums and maximums, not measured values, shown as fed.
25.00% 26.00%
Fat 15.00% 14.00%
Fiber 5.00% 6.00%
Calcium 1.20% Not listed
Phosphorus 1.00% Not listed
Omega-3 0.50% 1.00%
Omega-6 2.50% 2.60%
Taurine Not listed 0.08%
Moisture Higher moisture means a wetter food; it dilutes the other percentages above.
10.00% 10.00%
Calories 3888 kcal/kg 3830 kcal/kg
Calorie density Moderate Moderate
Ingredients
Full ingredient list Every ingredient on each label, in order of weight.
Deboned Duck, Duck Meal, Whole Sweet Potatoes, Chickpeas, Whitefish Meal (source of Omega-3 fatty acids), Lentils, Peas, Sunflower Oil (preserved with mixed tocopherols), Tapioca Starch, Dried Beet Pulp, Coconut Oil, Organic Apple Cider Vinegar, Organic Turmeric, Organic Black Pepper, Organic Ginger, Bovine Colostrum, Organic Blueberries, Cranberries, Organic Goji Berries, Organic Tart Cherries, Organic Pomegranate, Organic Pineapple, Organic Papaya, Organic Apple, Dried Kelp, Dried Seaweed Meal, New Zealand Green Mussel, Organic Carrots, Organic Pumpkin, Green Tea Extract, Sage Extract, Organic Parsley, Organic Spinach, Organic Kale, Sweet Basil, Thyme Extract, Organic Ashwagandha, Organic Chaga, Organic Lion's Mane, Organic Reishi, Organic Turkey Tail, Organic Shiitake, Organic Maitake, Organic Cordyceps, Vitamin A Acetate, Vitamin E Supplement, Riboflavin Supplement, Vitamin B-12 Supplement, Vitamin D-3 Supplement, Niacin Supplement, Choline Chloride, Pyridoxine Hydrochloride, Thiamine Mononitrate, Folic Acid, Biotin, Zinc Polysaccharide Complex, Iron Polysaccharide Complex, Manganese Polysaccharide Complex, Copper Polysaccharide Complex, Cobalt Polysaccharide Complex, Calcium Iodate, Sodium Selenite, Yucca Schidigera Extract, Pectin, Dried Lactobacillus acidophilus Fermentation Product, Dried Lactobacillus casei Fermentation Product, Dried Enterococcus faecium Fermentation Product, Dried Bacillus subtilis Fermentation Product, Dried Bacillus licheniformis Fermentation Product, Dried Baciollus coagulans Fermentation Product, Dried Aspergillus oryzae Fermentation Product, Dried Aspergillus niger Fermentation Product. Show full list
quail, duck, green lentils, duck meal, peas, garbanzo beans, pea flour, sunflower meal, turkey meal, chicken fat (preserved with tocopherols and citric acid), flax seed, dehydrated alfalfa meal, red lentils, natural chicken and turkey flavors, tapioca starch, sunflower oil, potassium chloride, salmon oil (preserved with tocopherols), dried yeast, salt, calcium carbonate, DL methionine, choline chloride, minerals (zinc proteinate, iron proteinate, selenium yeast, copper proteinate, magnesium oxide, manganese proteinate, ethylenediamine dihydroiodide), brewers dried yeast, vitamins (vitamin E supplement, niacin supplement, biotin, d-calcium pantothenate, vitamin A supplement, thiamine mononitrate, pyridoxine hydrochloride, riboflavin supplement, vitamin B12 supplement, vitamin D3 supplement, folic acid), taurine, lactic acid, L-ascorbyl-2-polyphosphate (source of vitamin C), yucca schidigera extract, yeast culture, dried Aspergillus oryzae fermentation extract, dried Bacillus subtilis fermentation product, dried Bacillus licheniformis fermentation product, dried Trichoderma longibrachiatum fermentation extract, dried Enterococcus faecium fermentation product, dried Lactobacillus acidophilus fermentation product, dried Bacillus subtilis fermentation extract, L-carnitine, rosemary extract Show full list
Limited ingredient No No
Marketed benefits Probiotic support, Digestive health, Immune support, Skin coat health, Allergy support, Joint care, Heart care, Brain health, Weight management, Endurance support Probiotic support, Digestive health, Antioxidant support, Brain health, Heart care, Skin coat health, Joint care
Format & suitability
Food type Dry Dry
Texture Kibble Kibble
Processing Slow Cooked Not listed
Life stage All Life Stages All Life Stages
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, Large Breed Growth (70+ lbs) All Life Stages, Large Breed Growth (70+ lbs)
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 Yes
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
Shop Chewy Amazon
Amazon

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Shared ingredients

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

  • Duck
  • Chickpea
  • Pea

Not sure which is right for your pet?

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Common Questions

Which food scores higher on KibbleLab?

Both foods score 8.2 out of 10 on KibbleLab.

Do these two foods share ingredients?

Yes. They share these top ingredients: Duck, Chickpea, Pea.

Are both foods AAFCO complete and balanced?

Yes, both foods are labeled AAFCO complete and balanced.

See the full profiles: Health Extension Grain Free Duck & Sweet Potato Recipe Dry Dog Food and NutriSource Grain Free Prairie Select 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.