Helping cats and dogs live their healthiest lives.
Sacred Birman kitten stood next to an adult Yorskhire Terrier in black and white.

S = Savory to help stimulate appetite in cats and encourage eating with square-shaped kibble

Helps compensate for decreased appetite with a highly palatable energy-dense formula to reduce meal volume

Helps promote kidney function with a precise antioxidant complex, fatty acids from fish oil, low phosphorus, and targeted protein levels

Works in conjunction with a variety of appetite-stimulating Royal Canin Renal Support wet and dry cat food varieties

Your vet recommended Royal Canin Renal Support S for a reason. This highly palatable dry cat food is specially formulated to care for the kidney health of adult cats under veterinary supervision. “S” stands for Savory, and this formula can help stimulate your cat’s appetite. The square-shaped dry kibble can be mixed with other Royal Canin Renal Support formulas, which have a variety of palatable aromas and dry or wet forms to help find the right combination to get your cat eating again. And the energy-dense diet provides nutritional support in smaller portions, since cats with kidney challenges have decreased appetites. Plus, it contains a precise antioxidant complex, fatty acids from fish oil, low phosphorus, and targeted protein levels to help support kidney function.

Corn, chicken fat, pork meal, brewers rice, corn gluten meal, fish meal, natural flavors, pea fiber, chicory, wheat gluten, fish oil, calcium carbonate, vegetable oil, sodium silico aluminate, potassium chloride, salt, psyllium seed husk, potassium citrate, DL-methionine, fructooligosaccharides, L-arginine, choline chloride, taurine, vitamins [DL-alpha tocopherol acetate (source of vitamin E), L-ascorbyl-2-polyphosphate (source of vitamin C), 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], trace minerals [zinc proteinate, zinc oxide, ferrous sulfate, manganese proteinate, manganous oxide, copper sulfate, calcium iodate, sodium selenite, copper proteinate], magnesium oxide, marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

Contains 4061 kcal ME/kg (calculated), 398 kcal ME/cup

Crude Protein (min)22.5%
Crude Protein (max)26.5%
Crude Fat (min)19.5%
Crude Fiber (max)5.0%
Moisture (max)8.0%
Phosphorus (max)0.55%
Eicosapentaenoic Acid (EPA)* (min)0.24%
Docosahexaenoic Acid (DHA)* (min)0.1%

*Not recognized as an essential nutrient by the AAFCO Cat Food Nutrient Profiles.

Weight Normal Lean
4.4 lb (2 kg) 1/4 cup (30 g) 3/8 cup (36 g)
5.5 lb (2.5 kg) 3/8 cup (35 g) 3/8 cup (43 g)
6.6 lb (3 kg) 3/8 cup (40 g) 1/2 cup (48 g)
7.7 lb (3.5 kg) 1/2 cup (45 g) 1/2 cup (54 g)
8.8 lb (4 kg) 1/2 cup (50 g) 5/8 cup (59 g)
9.9 lb (4.5 kg) 1/2 cup (54 g) 5/8 cup (65 g)
11.0 lb (5 kg) 5/8 cup (58 g) 3/4 cup (70 g)
12.1 lb (5.5 kg) 5/8 cup (62 g) 3/4 cup (75 g)
13.2 lb (6 kg) 5/8 cup (66 g) 3/4 cup (79 g)
15.4 lb (7 kg) 3/4 cup (74 g) 7/8 cup (89 g)
17.6 lb (8 kg) 7/8 cup (81 g) 1 cup (97 g)
19.8 lb (9 kg) 7/8 cup (88 g) 1 1/8 cup (106 g)
22.0 lb (10 kg) 1 cup (95 g) 1 1/8 cup (114 g)
Royal Canin Veterinary Diet Feline Renal Support S Dry Cat Food

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Customer reviews

30 Oct 2019

Resealable bag

The Renal Support S mixed half and half with the Urinary SO is keeping my cat alive and healthy. Her blood work is back in the normal range with this combination.
30 Oct 2019

Cat loves it!

My cat with early kidney disease has been on this diet for a while now. He started on another prescription brand and wasn't a fan of it, so I switched him to Royal Canin and have had no trouble with him being picky about it!
30 Oct 2019

30 Oct 2019

Cats like it!

My cats seem to enjoy. Just wish it didnt cost so much!
30 Oct 2019

3 cats all eat this

My cats have always gone for Royal Canin dry food but when one needed food for kidney support I was concerned about them accepting this. This actually is a preferred dry food for all of them!! While they all have different styles for wet food I am so pleased they will all eat this one!
Nancy in the Couve
23 Oct 2019

Great product for feline renal issues.

This was recomended by my vet, for my cat Tucker. He really likes this dry food, and it has been over a year, that he has been eating it.
23 Oct 2019

He likes the taste

I bought this for one of my cats that has crystals and he loves it anytime its feeding time he is waiting for it
23 Oct 2019

The only kidney food my cat will eat!

Tried 2 other brands and my cat would not eat them. This is the only kidney fiid he (Gatsby) will eat. Diagnised 1 year ago and all kiney levels normal. Gatsby is hapot , energetuc and all systems go. THANK YOU Royal Canin.
23 Oct 2019

Cat loves it

My cat has been on this for about a month now and she loves it. Of course my big girl is not picky which is why she has to be on prescription food.
23 Oct 2019

Cat Weight Watcher!

My cat been prescribe and eating this for years and it controls her weight. Jasmine is 16 years old and looking good!