Royal Canin Veterinary Diet Canine Urinary SO + Hydrolyzed Protein

by Royal Canin

Overall Score: 51/100

Ingredients

1. Brewers rice (carbohydrate)
2. corn (carbohydrate)
3. chicken fat (protein)
4. chicken by-product meal (protein)
5. brewers rice flour (other)
6. corn gluten meal (carbohydrate)
7. natural flavors (additive)
8. salt (mineral)
9. powdered cellulose (fiber)
10. potassium chloride (mineral)
11. vegetable oil (other)
12. calcium sulfate (other)
13. fish oil (protein)
14. monocalcium phosphate (other)
15. DL-methionine (other)
16. fructooligosaccharides (other)
17. L-lysine (other)
18. choline chloride (vitamin)
19. taurine (additive)
20. vitamins [DL-alpha tocopherol acetate (source of vitamin E) (other)
21. biotin (vitamin)
22. D-calcium pantothenate (other)
23. vitamin A acetate (vitamin)
24. niacin supplement (vitamin)
25. pyridoxine hydrochloride (vitamin B6) (other)
26. thiamine mononitrate (vitamin B1) (other)
27. vitamin B12 supplement (vitamin)
28. riboflavin supplement (vitamin)
29. vitamin D3 supplement (vitamin)
30. folic acid] (other)
31. trace minerals [zinc proteinate (other)
32. zinc oxide (other)
33. ferrous sulfate (mineral)
34. manganese proteinate (mineral)
35. manganous oxide (other)
36. copper sulfate (other)
37. calcium iodate (mineral)
38. sodium selenite (mineral)
39. copper proteinate] (other)
40. marigold extract (Tagetes erecta L.) (other)
41. L-tryptophan (other)
42. rosemary extract (preservative)
43. preserved with mixed tocopherols and citric acid (other)

Ingredient concerns

• Corn (medium concern): Corn is one of the most common allergens in dogs, though true corn allergies are relatively rare compared to protein allergies. Often used as an inexpensive filler to increase bulk. While it does provide digestible carbohydrates, its prominence in ingredient lists (especially as multiple corn-derived ingredients) can indicate a lower-quality formulation.
• Chicken By-Product Meal (medium concern): While nutritionally adequate, by-product meals can vary widely in quality and digestibility. They include parts like necks, feet, and intestines, which some consumers find objectionable. Quality control is less consistent than named muscle meat sources.
• Corn Gluten Meal (medium concern): Primarily used as an inexpensive plant-based protein booster that can inflate the protein percentage on guaranteed analysis without providing the complete amino acid profile of animal proteins. Its presence in large quantities may indicate the manufacturer is supplementing with cheap protein instead of using more meat.
• Sodium Selenite (low concern): Sodium selenite is an inorganic form of selenium with a narrower safety margin than organic forms (such as selenium yeast). It has lower bioavailability and higher potential for toxicity at elevated levels compared to organic selenium sources. Some premium pet foods use selenium yeast instead as a safer alternative.

Guaranteed analysis (dry-matter basis)

On a dry-matter basis (water removed for a fair wet-vs-dry comparison): protein 21.1%, fat 18.9%, fiber 0%, ash 7.5%, carbohydrate 52.5%. By calories: 17.7% from protein, 38.4% from fat, 43.9% from carbohydrate.

AAFCO compliance

This food meets the AAFCO adult dog nutrient minimums we can verify — protein 21.1% vs 18% minimum, fat 18.9% vs 5.5% minimum.

Dry food, with grains, for the adult life stage.

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