Royal Canin Veterinary Diet Urinary SO Moderate Calorie Dry Cat Food

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In stock
  • 3.3-lb bag
  • 6.6-lb bag
  • 17.6-lb bag
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  • Item Number
  • Weight
    17.6 pounds
  • Brand
    Royal Canin
  • Food Form
    Dry Food
  • Lifestage
  • Made in
    United States
  • Special Diet
    Prescription Food, Weight Control

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 will not be shipped until a copy of a valid prescription authorization is faxed to 1-800-619-7973 or e-mailed to

See all items by Royal Canin Veterinary Diet

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Customer Reviews

Rated 4.8 out of 5 by 255 reviewers.
Rated 5 out of 5 by Max and Peanut love it! Max and Peanut are a year and half old brothers that until recently had no health problems. Max developed a lower urinary tract issue. A trip to the vet revealed a urine ph that was too alkaline. The vet recommended royal canin urinary so. We put him on antibiotics and a pain med and switched his food and few days later he was doing much better. Both Max and Peanut love this food, they each eat a cup a day in addition to one small can of moist food. The pieces are small and round and easy to eat, the store brand we had them on was too big and odd shaped. They both had a hard time chewing them down to size and the bowl was full of little scraps. They both love it and so do we! The vet says if we keep them on this food it should keep the ph of they're urine were its supposed to be, and the keep the little crystals from forming that were causing Max so much discomfort. September 19, 2016
Rated 5 out of 5 by Cats love it I have 4 cats and 1 of them came down with urinary crystals and had to have a catheter. The vet. gave me two different samples of food specifically for this issue and told me it was fine to feed all my cats the same food. None of them wouldn't even touch the one sample (SD) but they all loved the Royal Canin. No more crystals in the one cat (knock on wood) and an added bonus is that the affect it had on all 4 cats coats. Their fur has never been so soft and shiny. Hopefully being moderate calorie will help all 4 lose a little weight as a bonus too. October 11, 2016
Rated 5 out of 5 by This Food Worked Great My cat was diagnosed with crystals in her urine. As soon as she started on this food, she was once again urinating properly (she was only going once in 24 hrs.)She loves the food! October 17, 2016
Rated 5 out of 5 by This keeps my cat from having urinary infections My 8year old cat has eaten this food for 7 years. She has not had any bladder or urinary tract infections and no crystals. October 16, 2016
Rated 5 out of 5 by I have no complaints, got my orders in 2 days like they said. If your cat has a urine/or stomach issue then this cat food will be good. This food I got is through the vet. I saved money going through this company. I spend $35 every 2 months on cat food. I spent $20 more for a bag that was 2 times bigger. October 9, 2016
Rated 5 out of 5 by Pricey, but kitty is worth it One of my cats had a blockage earlier this year and this brand was recommended by my vet to prevent crystals in the future. Not too crazy about the corn ingredients, but he loves the taste, has had perfect urinary test results and not one issue while being on this food. Since it promotes them to drink more water, I even mix a little into the other cats food as well. As with any veterinary diet, they can be on the pricey side, but it is worth it just to keep him out of the hospital again! It also helps that I alternate his meals with wet and this dry food. Highly recommended product. September 27, 2016
Rated 5 out of 5 by great and easy to use and cheaper i did my first order and i save money and it was here in about 5 days. i plan on ordering door food for my freind next time she needs it. October 5, 2016
Rated 5 out of 5 by prompt delivery/easy to order prompt delivery/easy to order.This product is well liked by my pet October 8, 2016
  • 2016-10-21 T05:44:06.434-05:00
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