HELPS DISSOLVE STONES: Innovative urinary tract cat food helps dissolve pure struvite stones and helps prevent calcium oxalate stones

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

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

HELPS PREVENT STONE REOCCURANCE: Specialized diet, with a reduced level of magnesium, helps prevent struvite stones from reoccurring

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 loaf in sauce wet 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. 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. And this specialized nutrition, with a reduced level of magnesium, helps dissolve pure struvite stones and prevent struvite stones from forming. 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 dry cat food and treats to complement your cat’s diet.

Working towards a sustainable future

Our belief that pets make our world better inspires and gives life to our purpose of making a better A BETTER WORLD FOR PETS ™

Discover more
Labrador Retriever adult sitting with its owner outdoors
Recyclability Content Block

Where to recycle your Royal Canin packaging?

Explore your local options.

Discover more

Water sufficient for processing, pork by-products, pork liver, chicken by-products, chicken liver, chicken, pork plasma, powdered cellulose, wheat flour, natural flavors, wheat gluten, calcium sulfate, salt, fish oil, carob bean gum, carrageenan, potassium chloride, sodium tripolyphosphate, xanthan gum, taurine, sodium bisulfate, DL-methionine, vitamins [DL-alpha tocopherol acetate (source of vitamin E), thiamine mononitrate (vitamin B1), biotin, niacin supplement, D-calcium pantothenate, folic acid, pyridoxine hydrochloride (vitamin B6), riboflavin supplement, vitamin B12 supplement, vitamin D3 supplement], marigold extract (Tagetes erecta L.), trace minerals [zinc oxide, zinc proteinate, ferrous sulfate, calcium iodate, copper sulfate, manganous oxide, sodium selenite].

Calorie Content

This diet contains 820 kcal ME/kg; 119 kcal ME/can on an as fed basis (calculated).

Nutrient Amount
Crude Protein (min)10.5%, Crude Fat (min)2.5%, Crude Fiber (max)2.0%, Moisture (max)81.0%.
Urinary SO Loaf in Sauce Canned Cat Food

Still have questions about this product?

Find out how to reach us, and get in touch.

Ask a question

Customer reviews

MinasMom
15 Mar 2021

Very disconcerting...

Our senior kitty has been on this food all her life as she is prone to urinary tract infections. Over the last year or so, we've noticed that our kitty has not been eating regularly or seems so famished that she goes through extra food. My husband and I have discussed whether there was something wrong with the food - maybe more or less water content or SOMETHING - and now I see that may actually be the case. We've even done additional bloodwork at the vet thinking something was wrong with her. As we have the food auto-shipped through Chewy, they recently advised that they will not be getting the food in the future. When I looked elsewhere - out of stock. Why did I have to come to this website to learn that the formula was changed and that other cats are struggling similarly. Have already contacted the vet to find an alternative. Not cool, Royal Canin. Not cool.
Not happy
08 Mar 2021

What’s going on

My cats health has recently been deteriorating. And now I see in the reviews that it’s making Other cats sick? Why can’t I find any more information on what is going on with this food? Nothing! We pay an arm and a leg for the food this company provides to keep our animals in good health. We Deserve to know what’s going on. What is it March now? I don’t trust this company.
JustmeAC
12 Feb 2021

Worked on my kitty

Here's my, or his, story. I feed my cats wet Ziwipeak. Went to clean the litterbox and there was blood in his pee. The did testing at the vet and turns out he's got crystals. They prescribed this (or Hills) and I have to admit, I fed him the RC 70% and Ziwi 30% in a day. I love Ziwi and the quality ingredients and I was upset about having to give that up, plus he was losing weight on the RC too. Thirty day check-up he was good and no crystals. About a month later he was having trouble holding it in and I noticed small red spots. Took him back, got scolded a bit by the doctor and was told he needs to be only on diet food. He can have one treat a day but no more Ziwi as it created high a PH balance. She said it's not from Ziwi but his body is changing to senior age and we all know what that does to us. So I had to stick to the RC, with dry food added in to keep his weight up cause he's a big cat, and with the next vet check he was clear of crystals. That last vet appt was a month ago and all seems fine now but for the minor incontinences he experiences. I put puppy pads outside the litterbox for that. He has also had minor issues though, being diagnosed with IBS many years ago. All cats are different and even though I don't like the ingredients in this food it does work, at least for my kitty. Now let's talk about my how this affects my bank account lol...
KStew
08 Feb 2021

It really works

I don't understand all of the bad reviews. My kitty is prone to crystals and after just one day on this food she started peeing normally again. Prior to this food, she would visit the litter box dozens of times a day and just sit and strain for up to 5 minutes. I'll continue to give her this food as long as she will eat it!
aaak26
29 Jan 2021

I wish I could give it 0 stars.

My vet recommended this food for my cat who is prone to crystals in her urine and UTI's. I bought 12 cans from my vet about a month ago and apparently those cans contained the original formula. I received 24 cans from a different distributor today and my cat will not touch this food now. Normally, I would take the time to gradually switch my cat to a new food if she doesn't seem immediately interested in it but I am very hesitant considering that most of these reviews say that the new formula made their cat(s) vomit. I am super disappointed. I will be switching to a different brand.
knomeymd
28 Jan 2021

Stef
22 Dec 2020

Poison! Making my cats SICK!!!

My cat, Cliff, has been on this food for 6 years and just recently I noticed that the consistency of the food looked odd, as if it was spoiled. I also noticed this weird brown sludge that made the food look dried out. Another thing I noticed was that my cat was eating this much slower than normal. Then he started getting diarrhea. I couldn't figure out what was causing this as he otherwise seemed fine. This was happening for about a week. Then one night he wouldn't eat his food, which is very unlike him and alarming. My other cat, Sophie, ending up eating the food Cliff wouldn't touch (she does not eat Royal Canin, she's on a different food). That night Sophie ended up having diarrhea and the next day wouldn't eat anything. The only variable that was different is that she ate the Royal Canin SO food. The next day I called the vet and purchased new food prescription food for Cliff. Cliff's diarrhea immediately stopped after stopping Royal Canin SO food. After about a day Sophie started eating again and her diarrhea also stopped. Without a doubt I know that this food caused my cats to get sick. I did some research and saw that the complaints on the new formula date back to February of this year (2020). Why hasn't something been done??? I heard Royal Canin started using cheaper ingredients in their food. Most likely this is the problem as I also heard that across the board the food is making animals sick. This is incredibly disturbing as from my perspective I thought this food was the best of the best. It's expensive, it's made in the USA, it's recommended by the doctors. Now I don't know who to trust! I called Royal Canin as an effort of goodwill to alert them of this issue and ask them to have integrity and pull this food from the market and let everyone know what is happening so that they don't continue to unknowingly poison their pets. I have zero faith that this company is going to do anything since the complaints have dated back almost a year. My biggest fear is that what I've been feeding Cliff is going to cause long term damage. What I also fear is that other people may not realize that what they are feeding their pets is causing them to get sick and potentially lead to death. Please research other food for your pets. We are now feeding Cliff Hills C/D and he seems to love it. ROYAL CANIN DO THE RIGHT THING AND RECALL THIS FOOD!!!!!!!!!!!!!!!!!!!!!!!!!!
Deborah C
30 Nov 2020

Dried out

My cat will no longer eat this product. You changed the formula and now it is dried out. Will find another company
jacqueline 62
18 Nov 2020

refused to eat after 3 yrs on this diet

My cat has been on this food for 3 years and now he refuses to eat sniffs and runs away. What did you do to the formula... will be going to vet to change his diet.. awful
petsmatter
29 Oct 2020

Vomiting, Diarrhea, Dandruff,

Two of my five cats were switched to the Royal Canin green label after they'd developed urinary problems. They healed and they were doing wonderfully on it for 2 years, between giving them both the wet and dry Urinary SO. Then the label changed to gold. My male cat started vomiting, diarrhea, and got really itchy with dandruff. My other two male cats wouldn't eat it at all. One of my female cats gagged trying to eat it and got diarrhea. Then my other female cat that did seem to like it at first, started getting sick from it. The price went way up as well too with the new label!!