Royal Canin Veterinary Diet® Canine Urinary SO® dry dog food

Founded by a veterinarian, Royal Canin has over 40 years experience in health nutrition. Our work with pet nutritionists, breeders, and veterinarians from around the world has provided us with knowledge about the specific nutritional requirements of dogs. This knowledge has allowed us to formulate the optimal diet for your dog's special needs.

  • Supports Struvite Dissolution
  • Supports urinary health
  • Increases urine volume to help decrease struvite and calcium oxalate levels
  • Reduced magnesium level
  • Royal Canin Urinary SO Index® promotes a urinary environment unfavorable to the development of both struvite and calcium oxalate crystals
  • 100% Complete and Balanced Nutrition
  • 100% Satisfaction Guaranteed

Canine Urinary SO is a complete and balanced diet for adult dogs formulated to aid in the nutritional management of calcium oxalate and struvite urolithiasis.

Where to Buy
Size: 17.6 lb
Size: 25.3 lb
Size: 6.6 lb
Product Information
Benefits

Struvite Dissolution
Provides nutrition that aids in the management of pure struvite uroliths.

Low RSS
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.

Urine Dilution
Increasing the urine volume simultaneously reduces the saturation of urine with calcium oxalate and struvite crystals.

Controlled Magnesium
Reduced level of magnesium, a natural component of struvite stones.

Feeding Guide
Recommended Daily Feeding Portion
Weight Low Activity Medium Activity High Activity
4.4 lb (2 kg) 1/2 cup (42 g) 5/8 cup (49 g) 3/4 cup (55 g)
6.6 lb (3 kg) 3/4 cup (57 g) 7/8 cup (66 g) 1 cup (75 g)
8.8 lb (4 kg) 7/8 cup (71 g) 1 cup (82 g) 1 1/8 cup (93 g)
11 lb (5 kg) 1 cup (84 g) 1 1/4 cup (97 g) 1 3/8 cup (110 g)
13.2 lb (6 kg) 1 1/4 cup (96 g) 1 3/8 cup (111 g) 1 5/8 cup (126 g)
15.4 lb (7 kg) 1 3/8 cup (108 g) 1 5/8 cup (125 g) 1 3/4 cup (142 g)
17.6 lb (8 kg) 1 1/2 cup (119 g) 1 3/4 cup (138 g) 2 cup (157 g)
19.8 lb (9 kg) 1 5/8 cup (130 g) 1 7/8 cup (151 g) 2 1/8 cup (171 g)
22 lb (10 kg) 1 3/4 cup (141 g) 2 cup (163 g) 2 3/8 cup (185 g)
24.3 lb (11 kg) 1 7/8 cup (151 g) 2 1/4 cup (175 g) 2 1/2 cup (199 g)
26.5 lb (12 kg) 2 cup (161 g) 2 3/8 cup (187 g) 2 5/8 cup (212 g)
28.7 lb (13 kg) 2 1/8 cup (171 g) 2 1/2 cup (199 g) 2 7/8 cup (226 g)
30.9 lb (14 kg) 2 1/4 cup (181 g) 2 5/8 cup (210 g) 3 cup (239 g)
33.1 lb (15 kg) 2 3/8 cup (191 g) 2 3/4 cup (221 g) 3 1/8 cup (251 g)
35.3 lb (16 kg) 2 1/2 cup (200 g) 2 7/8 cup (232 g) 3 3/8 cup (264 g)
37.5 lb (17 kg) 2 5/8 cup (210 g) 3 1/8 cup (243 g) 3 1/2 cup (276 g)
39.7 lb (18 kg) 2 3/4 cup (219 g) 3 1/4 cup (253 g) 3 5/8 cup (288 g)
41.9 lb (19 kg) 2 7/8 cup (228 g) 3 3/8 cup (264 g) 3 3/4 cup (300 g)
44.1 lb (20 kg) 3 cup (237 g) 3 1/2 cup (274 g) 4 cup (312 g)
46.3 lb (21 kg) 3 1/8 cup (246 g) 3 5/8 cup (284 g) 4 1/8 cup (323 g)
48.5 lb (22 kg) 3 1/4 cup (254 g) 3 3/4 cup (295 g) 4 1/4 cup (335 g)
50.7 lb (23 kg) 3 3/8 cup (263 g) 3 7/8 cup (305 g) 4 3/8 cup (346 g)
52.9 lb (24 kg) 3 3/8 cup (272 g) 4 cup (314 g) 4 1/2 cup (357 g)
55.1 lb (25 kg) 3 1/2 cup (280 g) 4 1/8 cup (324 g) 4 5/8 cup (368 g)
57.3 lb (26 kg) 3 5/8 cup (288 g) 4 1/4 cup (334 g) 4 3/4 cup (379 g)
59.5 lb (27 kg) 3 3/4 cup (297 g) 4 3/8 cup (344 g) 4 7/8 cup (390 g)
61.7 lb (28 kg) 3 7/8 cup (305 g) 4 1/2 cup (353 g) 5 1/8 cup (401 g)
63.9 lb (29 kg) 4 cup (313 g) 4 5/8 cup (362 g) 5 1/4 cup (412 g)
66.1 lb (30 kg) 4 cup (321 g) 4 3/4 cup (372 g) 5 3/8 cup (422 g)
68.3 lb (31 kg) 4 1/8 cup (329 g) 4 3/4 cup (381 g) 5 1/2 cup (433 g)
70.5 lb (32 kg) 4 1/4 cup (337 g) 4 7/8 cup (390 g) 5 5/8 cup (443 g)
72.8 lb (33 kg) 4 3/8 cup (345 g) 5 cup (399 g) 5 3/4 cup (454 g)
75 lb (34 kg) 4 1/2 cup (353 g) 5 1/8 cup (408 g) 5 7/8 cup (464 g)
77.2 lb (35 kg) 4 1/2 cup (360 g) 5 1/4 cup (417 g) 6 cup (474 g)
79.4 lb (36 kg) 4 5/8 cup (368 g) 5 3/8 cup (426 g) 6 1/8 cup (484 g)
81.6 lb (37 kg) 4 3/4 cup (376 g) 5 1/2 cup (435 g) 6 1/4 cup (494 g)
83.8 lb (38 kg) 4 7/8 cup (383 g) 5 5/8 cup (444 g) 6 3/8 cup (504 g)
86 lb (39 kg) 4 7/8 cup (391 g) 5 3/4 cup (453 g) 6 1/2 cup (514 g)
88.2 lb (40 kg) 5 cup (398 g) 5 7/8 cup (461 g) 6 5/8 cup (524 g)
90.4 lb (41 kg) 5 1/8 cup (406 g) 5 7/8 cup (470 g) 6 3/4 cup (534 g)
92.6 lb (42 kg) 5 1/4 cup (413 g) 6 cup (478 g) 6 7/8 cup (544 g)
94.8 lb (43 kg) 5 3/8 cup (421 g) 6 1/8 cup (487 g) 7 cup (553 g)
97 lb (44 kg) 5 3/8 cup (428 g) 6 1/4 cup (495 g) 7 1/8 cup (563 g)
99.2 lb (45 kg) 5 1/2 cup (435 g) 6 3/8 cup (504 g) 7 1/4 cup (573 g)
101.4 lb (46 kg) 5 5/8 cup (442 g) 6 1/2 cup (512 g) 7 3/8 cup (582 g)
103.6 lb (47 kg) 5 5/8 cup (450 g) 6 5/8 cup (521 g) 7 1/2 cup (592 g)
105.8 lb (48 kg) 5 3/4 cup (457 g) 6 5/8 cup (529 g) 7 5/8 cup (601 g)
108 lb (49 kg) 5 7/8 cup (464 g) 6 3/4 cup (537 g) 7 3/4 cup (610 g)
110.2 lb (50 kg) 6 cup (471 g) 6 7/8 cup (545 g) 7 7/8 cup (620 g)
121.3 lb (55 kg) 6 3/8 cup (506 g) 7 3/8 cup (586 g) 8 3/8 cup (666 g)
132.3 lb (60 kg) 6 7/8 cup (540 g) 7 7/8 cup (625 g) 9 cup (710 g)
143.3 lb (65 kg) 7 1/4 cup (573 g) 8 3/8 cup (664 g) 9 1/2 cup (754 g)
154.3 lb (70 kg) 7 5/8 cup (606 g) 8 7/8 cup (702 g) 10 1/8 cup (798 g)
165.3 lb (75 kg) 8 cup (638 g) 9 3/8 cup (739 g) 10 5/8 cup (840 g)
176.4 lb (80 kg) 8 1/2 cup (670 g) 9 3/4 cup (776 g) 11 1/8 cup (882 g)
187.4 lb (85 kg) 8 7/8 cup (701 g) 10 1/4 cup (812 g) 11 5/8 cup (923 g)
198.4 lb (90 kg) 9 1/4 cup (732 g) 10 3/4 cup (847 g) 12 1/8 cup (963 g)
209.4 lb (95 kg) 9 5/8 cup (762 g) 11 1/8 cup (882 g) 12 5/8 cup (1003 g)
220.5 lb (100 kg) 10 cup (792 g) 11 5/8 cup (917 g) 13 1/8 cup (1042 g)
1 cup = 8 fluid ounces = 85 grams
Ingredients

Brewers rice, corn, chicken by-product meal, chicken fat, natural flavors, egg product, powdered cellulose, salt, corn gluten meal, potassium chloride, monocalcium phosphate, fish oil, calcium carbonate, calcium sulfate, vitamins [DL-alpha tocopherol acetate (source of vitamin E), biotin, D-calcium pantothenate, vitamin A acetate, pyridoxine hydrochloride (vitamin B6), niacin supplement, folic acid, thiamine mononitrate (vitamin B1), vitamin B12 supplement, riboflavin supplement, vitamin D3 supplement], choline chloride, trace minerals [zinc proteinate, zinc oxide, ferrous sulfate, manganese proteinate, manganous oxide, copper sulfate, calcium iodate, sodium selenite, copper proteinate], taurine, marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid.
     

Guaranteed Analysis
Crude Protein (min) 14.0%
Crude Fat (min) 14.0%
Crude Fiber (max) 4.7%
Moisture (max) 10.0%
Magnesium (max) 0.08%
Calorie Content
This diet contains 3649 kilocalories of metabolizable energy (ME) per kilogram or 288 kilocalories ME per cup on an as fed basis (calculated).
Product Reviews
Royal Canin Veterinary Diet ® Canine Urinary SO ® dry dog food is rated 4.8 out of 5 by 702.
Rated 5 out of 5 by from No more Accidents or Lawn Brown Spots Noticed my yard had brown spots in March. My dog wet my bed and had accidents frequently too through out the home. She was so embarrassed and would hide. Poor baby. Vet recommended Urinary SO for her Struvite crystals. My dog Carly has been on it for 3 months and all problems gone. I decided since she was doing so well I could switch her to the same dog food my other dog uses. WRONG! In a matter of days she wet the bed and hid and my grass had brown spots again. Carly is on Royal Canin Urinary SO for life. My vet informed me more severe complications would occur if I took her off this food again. Thanks goodness for Royal Canin
Date published: 2016-06-14
Rated 5 out of 5 by from Royal Canin Urinary S/O Dry Dog Food My dog/baby girl. Precious has been eating Royal Canin Urinary S/O for several years. She loves it. She has a history of bladder stones. He vet prescribed this when she had surgery to remove some stones. In July, she had surgery to remove a kidney. After both her regular vet and the group of surgeons at the specialty center reviewed her diet, they all agreed that this was still the best choice for her. They have suggested that we add the canned food to the dry and she's just loving it. The only drawback is that she likes it a little too much. She's constantly asking to be fed. As I said earlier, Precious is my baby and I only want the best for her.
Date published: 2015-08-10
Rated 5 out of 5 by from GREAT FOR DOGS WITH BLADDER STONES My Shih Tzu has been on this food for over two years following a bout with bladder stones. Since being on this special food she has had no more bladder stones. Why don't they offer coupons for this food? There has never been a coupon and the food has gone up in price twice she she has been on it. She loves the food and there is no problem with her eating it. My question is why don't you make treats for dogs on prescription food? My dog loves to chew and chews everything in sight unless I remove it from her environment. A special treat along this dog food would be deeply appreciated along with a coupon once in a while.
Date published: 2015-10-23
Rated 1 out of 5 by from I wanted him to love it I bought this food, due to the vet letting me know that it was this or another brand, and I was hoping for love for this food. However, after a few days, he was so constipated, bloated, and felt bad, he would no longer eat. I had to take him to the vet, again, and put him on medication and a new food. The food has such a strong smell, I can almost see why. So, I immediately removed him from this, started him with another food, and he has lined out. I have saw many other statements about the same issues online. My little guy had surgery and has been through so much, a dog food should not cause more issues. Hopefully some others will have no issues!
Date published: 2016-05-11
Rated 5 out of 5 by from Royal Canin Urinary SO Dry Della and Effy have been on Royal Canin Urinary SO dry for about 7 years. No problems since and the gobble up the food, they love it.
Date published: 2015-08-10
Rated 4 out of 5 by from Recommended by our vet Our veterinarian recommended this after we had to bring our Yorkie-Maltese in with bladder stones. We'd been feeding him higher protein food that had created the problem. Since feeding the Royal Canin Urinary SO to him, he has not had a problem with the stones. My only concern with this food is that it makes him have to urinate much more frequently, requiring walks every few hours. Obviously, this isn't possible when working all day. Even when walking in the morning and coming home for lunch to walk him is a stretch. It's essentially led to me only feeding him this food when we'll be home all day to walk him frequently.
Date published: 2015-08-10
Rated 5 out of 5 by from Chronic Illness? No problem! This is the second Royal Canin product we have been prescribed for our puggle, Brutus. He was diagnosed with Addison's when he was about a year and a half old. He was initially prescribed Renal MP to help maintain his kidney function. It worked fantastically. Then, last winter, Brutus got bladder stones. He had to have them removed, and the vet moved him to Urinary S/O to keep new stones from forming. He is now almost 8 years old, and he has been on Royal Canin for most of his life. It keeps my troublesome little dog healthy, and that is worth the price for us!
Date published: 2015-08-27
Rated 4 out of 5 by from Does what it claims (What more could you ask for?) When Mabel was about two years old the vets noted that was likely to develop painful (and expensive) kidney stones if I kept her on regular foods. It has been over two years now and her urine pH is healthy every time we check and have had zero issues with her kidneys since the switch. I can't ask for a product to do anything more than what it claims to do, but so often today it seems products do far less than they claim: Royal Canin foods do what you expect them to. It's a little costly as she eats 4 cups of it a day, but I can't put a price on her health. If it were a bit more affordable I'd give it 5 stars.
Date published: 2015-08-10
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