Helps dissolve and prevent pure struvite stones and helps prevent calcium oxalate stones

Lowers the risk of crystal formation using RSS methodology for bladder health

Helps manage behaviors in older cats who become apprehensive and fearful in stressful environments and social situations, such as moving or the arrival of a new baby

Stimulates aging cats’ decreasing appetite with highly palatable dry kibble

Whether this is your cat’s first urinary issue or they need ongoing urinary care, your vet recommended Royal Canin Urinary SO Aging 7+ and Calm for a reason. This veterinary exclusive dry cat food was developed to nutritionally support your aging cat’s urinary tract and bladder health. This formula is designed with Relative Super Saturation (RSS) methodology 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. It also features specialized nutrients to help your older cat who may be demonstrating fearful behaviors, and a highly palatable texture to stimulate a decreased appetite and encourage regular eating. 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 Royal Canin Urinary SO Aging 7+ and Calm wet cat food and treats to complement your cat’s diet or for mixed feeding.

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Labrador Retriever adult sitting with its owner outdoors
Nutrient Amount
Crude Protein (min)30.0%
Crude Fat (min)9.0%
Crude Fiber (max)5.8%
Moisture (max)8.0%
Tryptophan (min)0.31%
Eicosapentaenoic Acid (EPA) (min)0.14%
Docosahexaenoic Acid (DHA) (min)0.08%
Calcium (max)0.81%
Phosphorus (max)0.87%
Sodium (max)0.53%
Magnesium (max)0.1%
Vitamin E (min)350 IU/kg
Lutein* (min)5 mg/kg
Glucosamine* (min)371 mg/kg
Chondroitin sulfate* (min)4 mg/kg.

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

Dry Feeding

Cat Weight Low Activity Medium Activity High Activity
4.4 lb (2 kg) 3/8 cup (28 g) 3/8 cup (34 g) 1/2 cup (41 g)
6.6 lb (3 kg) 3/8 cup (37 g) 1/2 cup (46 g) 5/8 cup (55 g)
8.8 lb (4 kg) 1/2 cup (45 g) 5/8 cup (56 g) 3/4 cup (68 g)
11 lb (5 kg) 5/8 cup (53 g) 3/4 cup (66 g) 7/8 cup (79 g)
13.2 lb (6 kg) 3/4 cup (60 g) 7/8 cup (75 g) 1 cup (90 g)

Wet Feeding

Cat Weight Cans / Day Low Activity Medium Activity High Activity
4.4 lb (2 kg) 1/4 1/4 cup (17 g) 1/4 cup (25 g) 3/8 cup (32 g)
6.6 lb (3 kg) 1/2 1/4 cup (17 g) 3/8 cup (28 g) 3/8 cup (37 g)
8.8 lb (4 kg) 1/2 1/4 cup (25 g) 1/2 cup (39 g) 5/8 cup (51 g)
11 lb (5 kg) 1/2 3/8 cup (33 g) 5/8 cup (50 g) 3/4 cup (64 g)
13.2 lb (6 kg) 1/2 1/2 cup (40 g) 3/4 cup (60 g) 7/8 cup (77 g)
Urinary SO Aging 7+ + Calm Dry Cat Food

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Customer reviews

12 Jul 2021

Really Good, But Recent Vomitting

I used this brand with my cats for years. My one cat had bladder crystal at only a few years old and we put him & his brother on a urinary diet. He had more crystals at 10 and we switched to this brand, they're currently 14. Recently I noticed there was quite a lot of hairballs and vomiting, but I assumed it was because of age and a recent move. Then, I had to temporarily switch to a different dry food. They liked this dry food more, and hairballs had reduced. Now I've switched back to Urinary SO 7+ +Calm and the vomiting (of mostly water) and hairballs have continued. I am planning to switch dry food brands.
22 Apr 2021

Only food that works for my Bengal

My Bengal has urinary stress which leaves him agitated and in pain. This is the only food that has successfully calmed his stress and reduced his discomfort making him comfortable and as a result, a pleasant family kitty. Competitor's foods do NOT work! This is the only one that works. Please continue to manufacture this product. It's superb to anything else on the market.
10 Dec 2020

Need to find this food!

This food would be perfect for my cat but I am not sure where to find it. Any advice? Thank you!
22 Aug 2020

An excellent food!!!

My kitty has been on this food for over a year. He loves it, eats with gusto, which was not his appetite before. His energy level is higher which was not so much the case before. His coat is soft and he has not shed as much. And he no longer continually licks his "private area". His peeing has increased since the food encourages his drinking more water. And his poops are frequent and normal. Since he is an older cat, these things are really important. In short, it is worth what I spend because in the long run, I will have less vet bills. I could not be happier with this food.
20 Aug 2020

Yummy Tummy

Scampi Kitti cannot get enough of this food! He walks me to the bag every morning too”help” me get him some more to eat. He gobbles a full bowl each day!