HELPS PREVENT STONES: Specialized adult cat food helps dissolve pure struvite stones and helps prevent calcium oxalate stones

WEIGHT MANAGEMENT: Low calorie cat food (10% less calories than Royal Canin Urinary SO Dry Cat Food) for ideal weight maintenance

BLADDER HEALTH: RSS methodology for cat bladder health helps lower the risk of crystal formation

S/O INDEX: The exclusive S/O Index creates an environment unfavorable to crystal formation in the bladder to help support urinary health

When your cat has urinary issues, easing their discomfort requires special care. But with the help of your veterinarian and Royal Canin, there’s not just hope—there can be a true difference.

This veterinary-exclusive dry cat food was developed to nutritionally support your adult cat’s urinary tract and bladder health. It increases the amount of urine your cat produces to help dilute excess minerals that can cause crystals and stones. Moderate calorie content (10% less than Royal Canin Urinary SO dry cat food) helps them maintain a healthy weight. Relative Super Saturation (RSS) methodology is used to help lower ion concentration in urine, which contributes to stone formation. This formula promotes a urinary environment unfavorable to the formation of both struvite and calcium oxalate crystals. Lower urinary tract issues may be a recurring concern for some cats. Talk to your veterinarian about keeping your cat on this urinary cat food for long-term urinary support. And ask them about the right Royal Canin wet cat food and treats to complement your cat’s diet.

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ContentBlockDailyPortion

Discover our tool that calculates the daily portion for your pet. Fill in your pet's information and you will get their daily feeding recommendation. In case of weight issues, do not hesitate to consult your vet to adapt this portion. Note that this feeding recommendation is more precise than the feeding table, therefore the values may slightly differ.

Calculate

Chicken by-product meal, brewers rice, corn, corn gluten meal, powdered cellulose, wheat gluten, natural flavors, chicken fat, salt, fish oil, potassium chloride, calcium sulfate, egg product, sodium bisulfate, vegetable oil, sodium pyrophosphate, DL-methionine, fructooligosaccharides, monocalcium phosphate, choline chloride, 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), vitamin B12 supplement, folic acid, vitamin D3 supplement], taurine, trace minerals [zinc proteinate, zinc oxide, manganese proteinate, ferrous sulfate, manganous oxide, copper sulfate, calcium iodate, sodium selenite, copper proteinate], marigold extract (Tagetes erecta L.), L-carnitine, rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

This diet contains 3277 kilocalories of metabolizable energy (ME) per kilogram or 275 kilocalories ME per cup on an as fed basis (calculated).

Nutrient Amount
Crude Protein (min)32.0%
Crude Fat (min)9.0%
Crude Fat (max)13.0%
Crude Fiber (max)9.3%
Moisture (max)8.0%
Calcium (max)1.4%
Phosphorus (max)1.3%
Magnesium (max)0.08%.

Dry Feeding

Cat Weight Low Activity Medium Activity
4.4 lb (2 kg) 3/8 cup (29 g) 3/8 cup (36 g)
6.6 lb (3 kg) 1/2 cup (39 g) 5/8 cup (49 g)
8.8 lb (4 kg) 5/8 cup (48 g) 3/4 cup (60 g)
11 lb (5 kg) 5/8 cup (56 g) 7/8 cup (70 g)
13.2 lb (6 kg) 3/4 cup (64 g) 1 cup (80 g)
15.4 lb (7 kg) 7/8 cup (71 g) 1 cup (89 g)
17.6 lb (8 kg) 7/8 cup (78 g) 1 1/8 cups (98 g)

Mixed Feeding

Cat Weight Cans / Day Low Activity Medium Activity
4.4 lb (2 kg) 1 1/8 cup (10 g) 1/4 cup (19 g)
6.6 lb (3 kg) 1 1/4 cup (20 g) 3/8 cup (32 g)
8.8 lb (4 kg) 1 3/8 cup (29 g) 1/2 cup (44 g)
11 lb (5 kg) 1 1/2 cup (37 g) 5/8 cup (56 g)
13.2 lb (6 kg) 1 1/2 cup (45 g) 3/4 cup (67 g)
15.4 lb (7 kg) 1 5/8 cup (52 g) 7/8 cup (77 g)
17.6 lb (8 kg) 1 3/4 cup (59 g) 1 cup (87 g)
Urinary SO Moderate Calorie Dry Cat Food

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Customer reviews

Lizzy222
02 Oct 2018

Our cat enjoys the food, he drinks plenty of water while on this diet, and thankfully we haven’t had any urinary issues arise again since starting him on this food several years ago.
RooRoo
02 Oct 2018

SO good for my cats

Under Dr. advise I have 3 cats using the SO moderate. It keeps there urinary tract healthy
Cooper love
02 Oct 2018

Hard to remember

Our cat, Cooper, has had a really hard time with urinary crystals and been very sick in the past. We tried many urinary specific foods to help him, but he did not like the food much until we tried Royal Canin dry and moist food Urinary SO Moderate calorie. He loves your food, both dry and moist. Best yet, his health has improved tremendously. Thank you for the wonderful products!
Shmums
02 Oct 2018

I have switched to the moderate calorie food and my cat lost 2 lbs. He's much healthier
CCoop
02 Oct 2018

Awesome Product!

We love this product as it keeps our beautiful cat alive. He had a urinary problem shortly after coming to live with us and if it wasn't for an expensive surgery and this food our amazing, beautiful cat wouldn't be with us today. Thank you for helping us keep him alive and with us.
BTlefty
02 Oct 2018

Great food

Sassy has been eating this food for years and it works great for her!
Cjsmom
02 Oct 2018

Very happy with this food

I have two cats that are prone to crystals, but I have a total of 16 cats. I have few ways to separate them, so it was important to find something that all the cats would eat. I tried Science Diet CD, but the cats just wouldn't eat it. So I tried Royal Canin SO, and everybody liked it - some of them too much so I was very happy to find the SO with moderate calorie. Been feeding it to them for over a year, and they are all doing well.
Sandy53
02 Oct 2018

Multi tasking food

I. Bought this food when my 3 year old cat started developing urinary problems. Knock on wood, not a single urinary issue and it satisfies him, while keeping his waist line in check.
Ashleyc0389
02 Oct 2018

Great product!

My cats love it! My older cat had a choice between a regular cat food and this food, and he chose the SO. my other cat would not eat the high end food I bought her and she only eats this as well.
SharonM
02 Oct 2018

Great Product!

It started out with only one of my cats needing the s/o diet due to her crystals in her urine that were causing her problems. Now all three of my cats are on the diet and love it to keep their urinary health in good shape.