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Royal Canin Veterinary Diet Feline Urinary SO Dry Cat Food

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About this product

What is Royal Canin Veterinary Diet Feline Urinary SO Dry Cat Food?

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.

This veterinary exclusive formula requires a prescription. Consult your veterinarian for more information about this product for your pet.

Suitable for:

Cats (Adult Cats with Urinary Health Concerns)

Benefits:

  • CATS WITH URINARY CONCERNS: Royal Canin Urinary SO is a veterinary-exclusive urinary cat food dry formula for adult cats with urinary health concerns
  • HELPS DISSOLVE STONES: Specialized urinary tract cat food helps dissolve pure struvite stones and helps prevent calcium oxalate stones
  • BLADDER HEALTH: Royal Canin Urinary SO cat food uses RSS methodology for cat bladder health to help lower the risk of crystal formation
  • S/O INDEX: The exclusive S/O Index creates an environment unfavorable to crystal formation in your cat's bladder to support urinary health
  • HELPS PREVENT STONE REOCCURRENCE: Specialized diet, with a reduced level of magnesium, helps prevent struvite stones from reoccurring

How does Royal Canin Veterinary Diet Feline Urinary SO Dry Cat Food work?

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.

How should I store this product?

Store in a cool, dry place.

See more

Royal Canin Veterinary Diet Feline Urinary SO Dry Cat Food Directions:

  • Consult your veterinarian for specific feeding guidelines for your cat.
  • The daily feeding recommendations below are only a guide.
  • Optimal feeding amounts may vary according to your cat's activity level and environment.
  • Royal Canin recommends that your cat be fed 2 to 4 equal portions of the diet per day.
  • Ensure fresh drinking water is available to your pet at all times.
  • Kibble color may vary due to natural ingredients.
  • When feeding Dry + Wet, this food is best mixed with Royal Canin Veterinary Diet Feline Urinary SO Loaf in Sauce Wet Cat Food
Tip:

HYDRATION BOOST: Hydration is critical for your cat's urinary health. Pairing Royal Canin Veterinary Diet Feline Urinary SO Dry Cat Food with Royal Canin Veterinary Diet Feline Urinary SO Wet Cat Food is a great way to increase your cat's daily water intake. If your cat needs a hydration boost, wet food can be a flavorful and hydrating addition to its diet.

Royal Canin Veterinary Diet Feline Urinary SO Dry Cat Food Dosage:

Daily Feeding Recommendation: Dry Only
Cat Weight Ideal Weight Overweight
4.4 lb 3/8 cup 1/4 cup
6.6 lb 1/2 cup 3/8 cup
8.8 lb 5/8 cup 1/2 cup
11 lb 3/4 cup 5/8 cup
13 lb 17/8 cup 5/8 cup

Royal Canin Veterinary Diet Feline Urinary SO Dry Cat Food Ingredients:

Guaranteed Analysis
Nutrient Amount
Crude Protein (min.) 32.5%
Crude Fat (min.) 13.0%
Crude Fiber (max.) 4.0%
Moisture (max.) 8.0%
Calcium (max.) 1.26%
Phosphorus (max.) 1.26%
Magnesium (max.) 0.1%
Ingredients
Chicken by-product meal, brewers rice, corn, corn gluten meal, chicken fat, wheat gluten, natural flavors, wheat, salt, powdered cellulose, fish oil, potassium chloride, sodium bisulfate, calcium sulfate, sodium pyrophosphate, vegetable oil, fructooligosaccharides, 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], DL-methionine, taurine, monocalcium phosphate, 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.), rosemary extract, preserved with mixed tocopherols and citric acid.
Calorie Content
This diet contains 3659 kilocalories of metabolizable energy (ME) per kilogram or 315 kilocalories ME per cup on an as fed basis (calculated).
Product Details
plus minus

What is Royal Canin Veterinary Diet Feline Urinary SO Dry Cat Food?

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.

This veterinary exclusive formula requires a prescription. Consult your veterinarian for more information about this product for your pet.

Suitable for:

Cats (Adult Cats with Urinary Health Concerns)

Benefits:

  • CATS WITH URINARY CONCERNS: Royal Canin Urinary SO is a veterinary-exclusive urinary cat food dry formula for adult cats with urinary health concerns
  • HELPS DISSOLVE STONES: Specialized urinary tract cat food helps dissolve pure struvite stones and helps prevent calcium oxalate stones
  • BLADDER HEALTH: Royal Canin Urinary SO cat food uses RSS methodology for cat bladder health to help lower the risk of crystal formation
  • S/O INDEX: The exclusive S/O Index creates an environment unfavorable to crystal formation in your cat's bladder to support urinary health
  • HELPS PREVENT STONE REOCCURRENCE: Specialized diet, with a reduced level of magnesium, helps prevent struvite stones from reoccurring

How does Royal Canin Veterinary Diet Feline Urinary SO Dry Cat Food work?

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.

How should I store this product?

Store in a cool, dry place.

See more
How to use
plus minus

Royal Canin Veterinary Diet Feline Urinary SO Dry Cat Food Directions:

  • Consult your veterinarian for specific feeding guidelines for your cat.
  • The daily feeding recommendations below are only a guide.
  • Optimal feeding amounts may vary according to your cat's activity level and environment.
  • Royal Canin recommends that your cat be fed 2 to 4 equal portions of the diet per day.
  • Ensure fresh drinking water is available to your pet at all times.
  • Kibble color may vary due to natural ingredients.
  • When feeding Dry + Wet, this food is best mixed with Royal Canin Veterinary Diet Feline Urinary SO Loaf in Sauce Wet Cat Food
Tip:

HYDRATION BOOST: Hydration is critical for your cat's urinary health. Pairing Royal Canin Veterinary Diet Feline Urinary SO Dry Cat Food with Royal Canin Veterinary Diet Feline Urinary SO Wet Cat Food is a great way to increase your cat's daily water intake. If your cat needs a hydration boost, wet food can be a flavorful and hydrating addition to its diet.

Royal Canin Veterinary Diet Feline Urinary SO Dry Cat Food Dosage:

Daily Feeding Recommendation: Dry Only
Cat Weight Ideal Weight Overweight
4.4 lb 3/8 cup 1/4 cup
6.6 lb 1/2 cup 3/8 cup
8.8 lb 5/8 cup 1/2 cup
11 lb 3/4 cup 5/8 cup
13 lb 17/8 cup 5/8 cup
Ingredients
plus minus

Royal Canin Veterinary Diet Feline Urinary SO Dry Cat Food Ingredients:

Guaranteed Analysis
Nutrient Amount
Crude Protein (min.) 32.5%
Crude Fat (min.) 13.0%
Crude Fiber (max.) 4.0%
Moisture (max.) 8.0%
Calcium (max.) 1.26%
Phosphorus (max.) 1.26%
Magnesium (max.) 0.1%
Ingredients
Chicken by-product meal, brewers rice, corn, corn gluten meal, chicken fat, wheat gluten, natural flavors, wheat, salt, powdered cellulose, fish oil, potassium chloride, sodium bisulfate, calcium sulfate, sodium pyrophosphate, vegetable oil, fructooligosaccharides, 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], DL-methionine, taurine, monocalcium phosphate, 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.), rosemary extract, preserved with mixed tocopherols and citric acid.
Calorie Content
This diet contains 3659 kilocalories of metabolizable energy (ME) per kilogram or 315 kilocalories ME per cup on an as fed basis (calculated).
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Avid Cat Rescuer
today
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Something is different, cats are vomiting
I have been buying this exact food for over a decade. I am a cat rescuer and well versed with cats and urinary blockages. I had a couple males on it and then eventually switched all of my cats over to it because they would devour this. Recently I noticed some of the cats throwing up after eating. I thought nothing of it aside from of they are too fast ECT. Well this has continued and my cats have lost weight. Now they refuse to eat this food. It now just sits there and gets thrown away in the morning when a new meal is served. I feed my cats in separate areas twice daily both wet and dry. The wet I feed is not urinary so.....I have multiple cats. When this issue is happening with all of them this is very concerning. I will be reaching out to everyone I can. Something is very wrong with this food. Please take this issue seriously before any other cats may be harned.
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Ilovecatvideos
3 weeks ago
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Vomiting and aversion
This worked to dissolve and prevent struvite stones, but then suddenly the vomiting began. Thinking it was hairballs, I switched to the wet food—some old cans I had in case of emergency.,But when I bought new cans the vomiting escalated. She developed an aversion to the SO in any form Since my cat is overweight, she can get acute fatty liver if she does not eat, so I fed her some commercial food WITHOUT issues. That’s when I came to this site to see if my situation was unique. Obviously not.
Thumbs up Would not recommend this product
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Apple C
3 weeks ago
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New bags made my cat sick and hospitalized
My cats have been eating this food for many years but all of a sudden they started boycotting it. I assumed it was a bad batch and bought a new bag. They enjoyed the new bag a little but still boycotting it. I noticed more frequent vomits and then suddenly my cat had acute pancreatitis and was hospitalized for 7 days. The scariest ever! Nothing had changed for her in her environment just the behavior towards the food. My other cat also was boycotting the food but did not develop pancreatitis so I’m pretty certain the food was the culprit (they just had varying reactions to it - thankfully not both of them hospitalized). I immediately changed their food. I’m reading more reviews of pet parents noticing cat vomits and this is worrisome! Has Royal Canin acknowledged anything? Can you tell us what exactly changed in the formula? I’d like to make sure I don’t feed her the new ingredients in any way to keep her healthy. This information would be helpful to all pet parents!
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3Whiskerteers
1 month ago
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VOMITING
I have been feeding my cat this food since being diagnosed with urinary issues in 2022- he was diagnosed at age 5, he is now 8. He and I both loved it; him the taste, me with peace of mind knowing I am keeping him healthy and safe. It is on the pricier side, but it is cheaper (so I thought) than vet bills. That is to say until a few months ago. He no longer was interested in devouring it as he used to and has began vomiting after eating it. I figured it was just because he was eating too fast so I sadly never thought twice about it. This past week he began vomiting profusely over 24 hours. Rushed him to the ER and they couldn't find anything wrong, took him to his primary where they ran multiple tests and nothing, then took him AGAIN because he started vomiting (3 times at this point) to the vet with more blood work and more x-rays coming out just fine. He was given a different food to build calories which we have to force feed and has been put on 3 bags of fluid. After eating a different brand food for ONE DAY, he started coming back. It wasn't until I put out this food for all of my cats that I noticed something was wrong. His littermate is essentially a garbage disposal that would try to eat all of his food, it got to the point to where we had to start feeding my Urinary so cat on the counter to ensure he was getting his medicine. When I sat the food on the ground to entice him to graze, my garbage disposal of a cat REFUSED to eat this. With that being said and multiple vets having no clue what's wrong, it has GOT to be this food. And seeing these reviews with people experiencing the same issues deeply saddens me because I feel guilty for forcing him to eat food that was making him sick but also heartbroken to those experiencing the same issues. My husband and I were at a complete loss because he was no longer eating or drinking, we were close to saying our goodbyes because we just didn't know what else could have been done. When our vet gave us different branded food that he is now devouring on his own and is NOT making him throw up, I have no other choice but to believe it is because of this food. So sad.
Thumbs up Would not recommend this product
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Catmum
1 month ago
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Used to love it
Cat always loved this, i have 2 cats, one which is not on this food, yet they used to fight over it. Now neither will touch it. The cat that was on it stopped eating it and has lost 10% of his body weight, vet can't find anything wrong with him and now we think it must be food. He literally would rather starve to death than eat it. When he does eat it he vomits. He started scavenging for food and will eat anything but this. He has been on it for 2 years plus. Not sure if there is a formula change?
Thumbs up Would not recommend this product
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Polarblizzard
1 month ago
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Cat not eating anymore?
My 9 year old cat has been eating this food for the past 5 years. He’s always devoured it, but suddenly he doesn’t seem interested in it anymore. Not sure if there was some change? He still eats the wet food.
Helpful?
tif1966
3 months ago
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Formulation change? Vomiting cats
We have been using RC U S/O for over 10 years. We recently got a large bag of this food in the Netherlands and our cats began vomiting for several weeks after starting the new bag. Our one older cat passed away and we are unsure if this food played a part because she didn't want to eat any more and we struggled to get her to eat enough of any other food. She passed away shortly after not wanting to eat this food any longer.
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Thumbs up Would not recommend this product
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Mombee
5 months ago
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Helps with crystals but to expensive
He was put on this food 3 years ago for his stones and his weight. He only gets 1/4 of a cup 2 times a day and is starving all the time and has put on weight. Had everything checked vet said because of his breed mix he maybe just a big cat. But he hates the food but eats it because that is all there is. Helps with stones but that is it. Super expensive for garbage now I have found what they use to make it.
Thumbs up Would recommend this product
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