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Purina ONE SmartBlend True Instinct with Real Beef & Sweet Potato Grain-Free Dry Dog Food is hot extruded (which means it's processed under extreme heat and pressure) and made with feed grade ingredients, which are unfit for human consumption. It contains 24 synthetic additives (so it is not all-natural), it has 3 anti-nutrients including Pea Starch, Pea Protein, and Sweet Potatoes (which may interfere with the absorption of essential nutrients), and it has 3 other sketchy ingredients, including Liver Flavor and Dried Beet Pulp.

Warning Due to this being a grain-free food that contains legumes or potatoes this Purina ONE recipe may be implicated in the FDA's ongoing investigation into diet-related Dilated Cardiomyopathy (or DCM), a potentially fatal heart condition.

Read our article about Grain Free Foods And Heart Failure
Purina ONE
  • Air-Dried
  • Human Grade
  • All-Natural
  • No Anti-Nutrients
  • No Sketchy Ingredients
  • Hot Extruded Kibble
  • Feed Grade
  • 24 Synthetics
  • 3 Anti-Nutrients
  • 3 Sketchy Ingredients
Detailed Comparison
Sundays Air-Dried Food for Dogs Human Grade Beef Recipe Purina ONE SmartBlend True Instinct with Real Beef & Sweet Potato Grain-Free Dry Dog Food
Family-owned Owned by Nestlé
Human Grade Feed Grade
Air-Dried Hot Extruded Under Extreme Heat And Pressure
No Anti-Nutrients
3 Anti-Nutrients:
Pea starch, Pea protein, Sweet potatoes
All-Natural
24 Synthetics:
Beef (source of glucosamine), Beef fat naturally preserved with vitamin e, Essential nutrients and other ingredients: minerals (potassium chloride, Calcium carbonate, Mono and dicalcium phosphate, Zinc sulfate, Ferrous sulfate, Manganese sulfate, Copper sulfate, Calcium iodate, Sodium selenite), Vitamins (vitamin e, Choline, Vitamin b-3, Vitamin a, Vitamin b-5, Vitamin b-1, Vitamin b-12, Vitamin b-2, Vitamin b-6, Folic acid, Vitamin k, Vitamin d-3, Vitamin b-7) b-4171
Nothing sketchy
3 Other Sketchy Ingredients:
Canola meal, Liver flavor, Dried beet pulp
Ingredients:
USDA Beef, Beef Liver, Beef Bone, Pumpkin, Millet, Wild Salmon Oil, Sunflower Oil, Kale, Flaxseed, Zucchini, Sea Salt, Parsely, Kelp, Chicory Root, Turmeric, Mixed Tocopherols, Ginger, Selenium Yeast, Blueberries, Carrots, Apples, Tomatoes, Shiitake Mushrooms, Broccoli, Oranges, Cranberries, Spinach, Beets, Tart Cherries, Strawberries
Ingredients:
Beef (Source of Glucosamine), Chicken Meal (Source of Glucosamine), Pea Starch, Canola Meal, Cassava Root Flour, Beef Fat Naturally Preserved with Vitamin E, Dried Egg Product, Pea Protein, Dried Yeast, Sweet Potatoes, Liver Flavor, Dried Beet Pulp, Essential Nutrients and Other Ingredients: Minerals (Potassium Chloride, Salt, Calcium Carbonate, Mono and Dicalcium Phosphate, Zinc Sulfate, Ferrous Sulfate, Manganese Sulfate, Copper Sulfate, Calcium Iodate, Sodium Selenite), Sunflower Oil, Vitamins (Vitamin E, Choline, Vitamin B-3, Vitamin A, Vitamin B-5, Vitamin B-1, Vitamin B-12, Vitamin B-2, Vitamin B-6, Folic Acid, Vitamin K, Vitamin D-3, Vitamin B-7). B-4171.
* Please note that while we work to keep this information as up-to-date as possible, specific recipes and formulations may have changed since the time that the Comparison Tool was created.