Royal Canin Veterinary Diet Urinary SO Dry Cat Food

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17.6-lb bag
  • 7.7-lb bag
  • 17.6-lb bag
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This prescription item requires vet approval. Details


Keep your favorite feline happy and healthy with the precisely formulated nutrition of Royal Canin Veterinary Diet Urinary SO Dry Cat Food. Created specifically to help manage lower urinary tract and bladder health in adult cats, this prescription feline dry food also has the added benefit of helping to assist in managing lower urinary tract disease in cats and preventing the formation of harmful urinary tract health concerns. Formulated by veterinarians to increase urine output volume and prevent the formation of struvite and calcium oxalate crystals, this urinary health kibble is also highly digestible and provides the complete and balanced nutrition that adult cats need to live a happy and healthy life.

Key Benefits

  • Provides complete and balanced feline nutrition with the ideal mix of protein, fiber, and other essential nutrients.
  • Recommended for cats that are at risk of developing lower urinary tract disease or have suffered from it previously.
  • Promotes a healthy urinary system with Royal Canin Urinary S/O Index® to prevent the formation of harmful crystals.
  • Developed by using low RSS (relative super saturation) method for cats prone to both struvite and oxalate urolithiasis.
  • Uniquely formulated by veterinarians to support feline bladder and urinary health while providing optimal nutrition.

This product requires a veterinary prescription. Simply provide your vet's information during checkout and we'll follow up to confirm the prescription, or email a copy of your prescription to rx@chewy.com and we'll get your order out right away.

See all items by Royal Canin Veterinary Diet

  • Item Number
  • Weight
    17.6 pounds
  • Brand
    Royal Canin
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    Prescription Food

Nutritional Info


Chicken-by Product Meal, Brewers Rice, Corn Gluten Meal, Corn, Chicken Fat, Natural Flavors, Soy Protein Isolate, Powdered Cellulose, Salt, Egg Product, Brewers Dried Yeast, Potassium Chloride, Calcium Sulfate, Fish Oil, Sodium Bisulfate, Vegetable Oil, Taurine, Choline Chloride, Dl-Methionine, Vitamins [Dl-Alpha Tocopherol Acetate (Source of Vitamin E), Niacin Supplement, Biotin, Riboflavin Supplement, D-Calcium Pantothenate, Pyridoxine Hydrochloride (Vitamin B6), Vitamin A Acetate, Thiamine Mononitrate (Vitamin B1), Folic Acid, Vitamin B12 Supplement, Vitamin D3 Supplement], Marigold Extract (Tagetes Erecta L.), Trace Minerals [Zinc Oxide, Zinc Proteinate, Ferrous Sulfate, Manganese Proteinate, Copper Proteinate, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite], Rosemary Extract, Preserved with Mixed Tocopherols and Citric Acid.

Caloric Content

3,631 kcal/kg, 298 kcal/cup

Guaranteed Analysis
Crude Protein 32.5% min
Crude Fat 13.5% min
Crude Fiber 4.5% max
Moisture 9.5% max
Magnesium 0.08% max

Feeding Instructions

Weight Low Activity (Cup) Medium Activity (Cup) High Activity (Cup)
3.3 lbs 1/4 3/8 3/8
4.4 lbs 3/8 3/8 1/2
5.5 lbs 3/8 1/2 5/8
6.6 lbs 3/8 1/2 5/8
7.7 lbs 1/2 5/8 3/4
8.8 lbs 1/2 5/8 3/4
9.9 lbs 5/8 3/4 7/8
11.0 lbs 5/8 3/4 7/8
12.1 lbs 5/8 7/8 1
13.2 lbs 3/4 7/8 1
14.3 lbs 3/4 7/8 1 1/8
15.4 lbs 3/4 1
16.5 lbs 7/8 1
17.6 lbs 7/8 1 1/8
18.7 lbs 7/8 1 1/8
19.8 lbs 1 1 1/8
20.9 lbs 1 1 1/4
22.0 lbs 1 1 1/4

Daily feeding recommendations may be divided into 2 - 4 meals.

Transition Instructions

We recommend at least a 7-day transition before you begin feeding the new food exclusively. Start by mixing 75% of the old diet with 25% of the new diet on Day 1 and Day 2. On Day 3 and Day 4, mix 50% of the old diet with 50% of the new diet. On Day 5 and Day 6, mix 25% of the old diet with 75% of the new diet. On the 7th day, you can feed the new food exclusively. This allows your pet’s digestive system to smoothly adapt to the new food. 

Customer Reviews

1193 reviews 1193 Reviews 4.8 out of 5 Stars

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