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

A = Aromatic to help stimulate appetite in cats and encourage eating with round-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 A for a reason. This highly palatable dry cat food is specially formulated to care for the kidney health of adult cats under veterinary supervision. “A” stands for Aromatic, and this formula can help stimulate your cat’s appetite. The round-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.

Brewers rice, corn, chicken fat, wheat gluten, corn gluten meal, chicken by-product meal, soy protein isolate, powdered cellulose, natural flavors, wheat, chicory, fish oil, calcium carbonate, sodium silico aluminate, potassium chloride, DL-methionine, psyllium seed husk, potassium citrate, L-arginine, fructooligosaccharides, salt, choline chloride, 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], taurine, trace minerals [zinc oxide, ferrous sulfate, manganous oxide, copper sulfate, calcium iodate, sodium selenite], L-lysine, marigold extract (Tagetes erecta L.), rosemary extract, preserved with mixed tocopherols and citric acid.

Calorie Content

Contains 3790 kcal ME/kg (calculated), 345 kcal ME/cup

Crude Protein (min)21.0%
Crude Protein (max)25.0%
Crude Fat (min)15.0%
Crude Fiber (max)6.4%
Moisture (max)8.0%
Phosphorus (max)0.57%
Eicosapentaenoic Acid (EPA)* (min)0.28%
Docosahexaenoic Acid (DHA)* (min)0.12%

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

Weight Normal Lean
4.4 lb (2 kg) 3/8 cup (32 g) 3/8 cup (39 g)
5.5 lb (2.5 kg) 3/8 cup (38 g) 1/2 cup (46 g)
6.6 lb (3 kg) 1/2 cup (43 g) 5/8 cup (52 g)
7.7 lb (3.5 kg) 1/2 cup (48 g) 5/8 cup (58 g)
8.8 lb (4 kg) 5/8 cup (53 g) 3/4 cup (64 g)
9.9 lb (4.5 kg) 5/8 cup (58 g) 3/4 cup (69 g)
11.0 lb (5 kg) 5/8 cup (62 g) 7/8 cup (75 g)
12.1 lb (5.5 kg) 3/4 cup (66 g) 7/8 cup (80 g)
13.2 lb (6 kg) 3/4 cup (71 g) 7/8 cup (85 g)
15.4 lb (7 kg) 7/8 cup (79 g) 1 cup (95 g)
17.6 lb (8 kg) 1 cup (87 g) 1 1/8 cup (104 g)
19.8 lb (9 kg) 1 cup (94 g) 1 1/4 cup (113 g)
22.0 lb (10 kg) 1 1/8 cup (102 g) 1 3/8 cup (122 g)
Royal Canin Veterinary Diet Feline Renal Support A Dry Cat Food

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Customer reviews

02 Dec 2019

Feline Renal Support Kit variety tempts appetite

Puck is a former dumpster diving street cat, adopted 2012 when approximately 8-12yrs old after luring him with a stinky can of RC Recovery. Incidentally, on abdominal ultrasound during GI inflammation and endoscopy, an asymmetrical kidney was noted by the radiologist, while his serum/blood kidney values remained unaffected, yet. We caught his chronic kidney disease early, before the SDMA test available for detecting decreased renal function in 2014, and long before azotemia (BUN/CREA elevated). Royal Canin's Renal Support variety of canned and dry options enable me to rotate Puck's options when he is inappetant and off a particular texture or flavor. If nausea and discomfort associated with the last time he approached one of the Renal dry or canned, we can go to a different one after getting ahead of gastrointestinal symptoms secondary to renal disease with Cerenia, B12 injections, and diuresis with fluids. He was no longer IRIS Stage I by 2018, and we increased fluid therapy to every other day, rotating renal diet, and adding a sardine or Welactin oil directly to food to entice as needed while managing IRIS Stage III. RC Renal diets kept Puck as vibrant and symptom-free as possible for 6 years. If we had a whole bag or case of renal he was refusing consistently, we got a full refund for the purchase, or credit on our RC account for other food. Puck was my pickiest CKD (aka CRD, CRI) cat to date, and the E loaf can, F and A dry options were favorites; these, in addition to the occasional Fancy Feast/canned fish was the only way we kept Puck's body condition up, nausea at bay, and able to continue home therapy without internist intervention with a feeding tube (needed during GI disease flareup 2016). Other rx renal diets weren't as palatable, had insufficient variety, or were too low in protein, rather than moderate. At the end of life, mirtazapine was needed every 3 to 5 days to keep his appetite stimulated. If unable to pill oral meds, we had injectable to utilize along with SQ fluid therapy, until appetite improved in 1-2 days. If inappetance persisted longer than 24 hours on fluids and meds, IV therapy and hospitalization were warranted. Oliver, another DSH, adopted as a kitten by my dad, did well on RC Renal while also balancing HCM with his CKD the last 2 years of his life. His heart disease and kidney disease were well controlled, as GI obstruction and injury was ultimately what claimed him and destroyed his QOL, not his chronic diseases. Puck had much more time shared with his adoptive senior mom and later, me again when she was moved to memory care nursing, thanks to RC Renal dietary management. He eventually developed mild hypertension and mitral valve degeneration, a form of heart disease, common in senior kitties we often miss as their BP is not regularly monitored at wellness visits. That little imp ruled my family and a piece of our hearts forever, while we gave him a second chance at life, with gentle paws touching my face, grooming us to distraction, shoulder rides, and lap loving his senior years. From dumpster street life to prince of a cozy sweet home, The Impish Puckster left his mark on this family.
Royal Canin response
Beautifully written and so wonderful that you shared with us!
30 Oct 2019

I have had need of this food over the years. Have 3 renal cats now. I have less runny pooh with this brand and had no reoccurance of system problems
30 Oct 2019

My cat loves it, and it’s improved her health

I own a (formerly) feral American Shorthair. She’s small, tough and scrappy, but also very picky about what she will eat. My Vet said she needed to switch to the renal diet feed, because she showed the beginning of renal failure. She loves all 3 flavors of the food, but especially the A! This A dry kibble is the smallest of any feed I’ve seen and is easy for her to crunch. Most importantly, her health has improved greatly.
30 Oct 2019

30 Oct 2019

Quality food; great palatability!

The vet put my kitty on this food; it’s the only prescription food he will eat; he loves it!
29 Oct 2019

My cat has been eating this for 5 years and has completely eliminated her health problems!
27 Oct 2019

My cat loves this food!

My cat has been eating the Royal Canin Renal Support A since he was diagnosed with CKD over 3 years ago. He absolutely loves it, and I'm sure that it has contributed to the manageability of his condition.
24 Oct 2019


Appetite has NEVER been a problem with this cat. But he's doing really well on the Renal support dey food. Thank you!!
24 Oct 2019

Our switch to prescription kidney food went great!

We were very worried that our 17-year old would not like this new prescription food for his kidney disease, but, thankfully, he likes it just as much as the commercial food he’d been eating his whole life.
Teresa H
22 Oct 2019

My cats love it

It has helped with their kidney function and they love the taste.