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Royal Canin Veterinary Diet Urinary SO Moderate Calorie Dry Cat Food

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17.6-lb bag
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  • 17.6-lb bag

Royal Canin Veterinary Diet Urinary SO Moderate Calorie Dry Cat Food, 17.6-lb bag

Lower urinary tract disease (LUTD) refers to a group of disorders that commonly leads to irritation of the urinary tract and corresponding undesirable clinical signs. What causes Lower Urinary Tract Disease? In cats, bacterial infections are far less common. Urinary crystals and stones are often linked to this disease. The most common cause of Lower Urinary Tract Disease in cats is idiopathic cystitis. This diet promotes a urinary environment unfavorable to the development of both struvite and calcium oxalate crystals.

Key Benefits

  • Recommended for cats at risk of developing lower urinary tract disease and who are predisposed to weight gain
  • Moderate calorie content, helps maintain ideal weight
  • Dissolution of pure struvite uroliths
  • Help prevent struvite, calcium oxalate and phosphate uroliths
  • Provides nutrition that aids in the management of pure struvite uroliths
  • Relative Super Saturation (RSS) methodology predicts the crystallization potential of urine; RSS is used to develop diets that lower the concentration of ions contributing to struvite and calcium oxalate urolithiasis
  • Increasing the urine volume simultaneously reduces the saturation of urine with calcium oxalate and struvite crystals
  • Reduced level of magnesium, a natural component of struvite stones

NOTE: Royal Canin veterinary diets require a veterinary prescription. This product ships directly from Royal Canin and will arrive separately from other products ordered from This product will not be shipped until a copy of a valid prescription authorization is faxed to 786-528-6088 or e-mailed to

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Item Number 73705
Weight 17.6 pounds
  • Adult
  • Dry Food
Country of Origin
  • United States
Special Diet
  • Prescription Food
  • Weight Control
  • Royal Canin

Chicken meal, brewers rice, corn gluten meal, corn, powdered cellulose, wheat gluten, natural flavors, chicken fat, salt, potassium chloride, monocalcium phosphate, calcium sulfate, fish oil, sodium bisulfate, vegetable oil, dried egg product, DL-methionine, fructooligosaccharides, glucosamine hydrochloride, choline chloride, monosodium phosphate, taurine, vitamins [DL-alpha tocopherol acetate (source of vitamin E), biotin, niacin supplement, pyridoxine hydrochloride (vitamin B6), D-calcium pantothenate, riboflavin supplement (vitamin B2), vitamin A acetate, thiamine mononitrate (vitamin B1), folic acid, vitamin B12 supplement, vitamin D3 supplement], L-carnitine, 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 natural mixed tocopherols and citric acid

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Royal Canin Veterinary Diet Urinary SO Moderate Calorie Dry Cat Food Customer Reviews

Royal Canin Veterinary Diet Urinary SO Moderate Calorie Dry Cat Food 4.8 5 120 120
Very Effective Diet for Maintaining Urinary Tract Health in Neutered Males The Royal Canin Veterinary Diet Urinary SO Moderate Calorie Dry cat food formula has been a godsend for our neutered male cat who has had 2 struvite crystal induced UTI's in the recent past. It performs exactly as described by discouraging formation of uroliths, increasing urinary volume, and encouraging the desire to drink more water. We make certain that Hector has plenty of fresh, cold water and the food itself does the rest in maintaining optimal health. Hector is frisky and bright eyed again after being on the Urinary SO formula. Incidentally, I spoke to a veterinary technician at Royal Canin who was very helpful. I was concerned that feeding Hector strictly dry cat food might still put him at risk for future UTI's; however the technician did an excellent job explaining how the formula works and reassured me that the dry formula alone is adequate for preventing formation of crystals. offers the best price anywhere on this rather expensive dry cat food, and they have outstanding customer service. March 1, 2014
Go Mr. Chewy I have got to say that I wish I knew about Mr. Chewy a long time ago. Service is excellent with great prices. I love the fact that I don't have to keep running to Petsmart to find them out of stock of what I need. I have recommended Mr. Chewy to others and will continue to do so. June 28, 2012
Great product for my cats. I bought Royal Canin Veterinary Diet Urinary SO for my cat who developed an UTI. He loves the food. I decided to also try it on my other cats. They all love it also. I continue to receive it for my cats. I do ensure to give only the recommended amount to help my cats with their weight. It is a great product. September 3, 2012
Good for weight reduction My cat had gained weight over the last year and has a history of urinary blockage, I was feeding him Royal cannon SO, my daughter who is a vet tech suggested I switch him to the moderate calorie SO. I discussed it with his veterinarian and he agreed. I was afraid he would not like it as well but surprisingly he never noticed the difference. He is on his way to his former svelte self and much more active. I am very pleased with this product. January 8, 2014
Great for cats with urinary tract issues Good dry RX food, especially for my neutered 10-year-old , who has a history of urinary tract infection. July 5, 2012
Royal canin veterinary diet urinary dry cat food My cat is on a special wet diet due to a urinary problem. In winter time he seems to be hungry all the time and Royal Canin dry cat food works perfectly for snacking! ^..^ December 20, 2013
Keeps Male Cats' Urinary Tracts Clear My male cat had a urinary blockage, which was diagnosed as struvite crystal formation. This and other urinary issues are not uncommon in male cats. My vet prescribed Royal Canin Urinary SO food. Since he went on this regimen his urine flows freely and he has not had a recurrence. He loves the food, and is on the moderate calorie formula which is helping keep his weight in check as well. September 29, 2013
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