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Castor & Pollux PRISTINE Grain-Free Grass-Fed Beef 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 19 synthetic additives (so it is not all-natural), it has 4 anti-nutrients including Organic Pea Protein, Organic Peas, and Organic Tapioca Starch (which may interfere with the absorption of essential nutrients), and it has 2 other sketchy ingredients, including Guar Gum and Xanthan Gum. Many consider this food to be inconvenient, because it requires clean-up.

Warning Due to this being a grain-free food that contains legumes or potatoes this Castor & Pollux 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
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Castor & Pollux
  • Air-Dried
  • Human Grade
  • All-Natural
  • No Anti-Nutrients
  • No Sketchy Ingredients
  • No Prep
  • No Clean-up
  • Canned Wet
  • Feed Grade
  • 19 Synthetics
  • 4 Anti-Nutrients
  • 2 Sketchy Ingredients
  • Prep required
  • Clean-up required

Detailed Comparison

Sundays Air-Dried Food for Dogs Human Grade Beef Recipe Castor & Pollux PRISTINE Grain-Free Grass-Fed Beef
Family-owned Owned by Nestlé
Human Grade Feed Grade
Air-Dried Canned Under Extreme Heat And Pressure
No Anti-Nutrients
4 Anti-Nutrients:
Organic pea protein, Organic peas, Organic tapioca starch, Organic dried alfalfa meal
All-Natural
19 Synthetics:
Sodium phosphate, Potassium chloride, Choline chloride, Minerals (zinc amino acid complex, Iron amino acid complex, Manganese amino acid complex, Copper amino acid complex, Potassium iodate, Cobalt glucoheptonate, Sodium selenite), Vitamins (vitamin e supplement, Vitamin b12 supplement, D-calcium pantothenate, Vitamin a supplement, Vitamin d3 supplement, Riboflavin supplement, Folic acid, Pyridoxine hydrochloride, Thiamine mononitrate)
Nothing sketchy
2 Other Sketchy Ingredients:
Guar gum, Xanthan gum
No Prep Required Prep Required
No Clean-up Required Clean-up Required
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, Beef Broth, Water Sufficient For Processing, Chicken, Organic Pea Protein, Organic Chicken Liver, Dried Egg Product, Organic Peas, Organic Carrots, Organic Tapioca Starch, Sodium Phosphate, Salt, Organic Flaxseed, Sunflower Oil, Organic Dried Alfalfa Meal, Organic Spinach, Potassium Chloride, Salmon Oil, Choline Chloride, Guar Gum, Minerals (Zinc Amino Acid Complex, Iron Amino Acid Complex, Manganese Amino Acid Complex, Copper Amino Acid Complex, Potassium Iodate, Cobalt Glucoheptonate, Sodium Selenite), Xanthan Gum, Yucca Schidigera Extract, Vitamins (Vitamin E Supplement, Vitamin B12 Supplement, D-Calcium Pantothenate, Vitamin A Supplement, Niacin, Vitamin D3 Supplement, Riboflavin Supplement, Folic Acid, Pyridoxine Hydrochloride, Biotin, Thiamine Mononitrate), Organic Cinnamon, Organic Cumin.