Royal Canin Urinary S/O canned dog food review: a vet diet for bladder stones

If your dog has had bladder stones or urinary crystals, your vet may put them on a diet like this. Royal Canin Urinary S/O is the best-known one. It earns our Best for Urinary Health pick for a reason.

What is it

Royal Canin Urinary S/O is a 410g canned veterinary diet designed to help dissolve struvite stones and reduce the risk of urinary crystals forming. It does this by adjusting mineral levels and encouraging your dog to drink and pee more, which flushes the bladder. As a wet food it’s mostly water (Royal Canin lists it at 78% moisture), so it adds hydration on top of the mineral changes. That hydration matters. Dogs on urinary diets often don’t drink enough on their own, and a can that’s more than three-quarters water helps keep urine dilute. This is a therapeutic food, not an everyday diet, and should be fed on your vet’s advice.

How do you feed it?

The listing doesn’t include a feeding chart, so your vet sets the daily amount based on your dog’s weight and condition. Switch over gradually (mix in a little more of the new food each day across a week) so your dog’s stomach adjusts. Many vets pair the wet can with the dry Urinary S/O, using the can for hydration and the kibble for cost. Don’t stop the moment your dog seems better. Stones and crystals need follow-up tests, and your vet decides when it’s safe to change the diet.

Is it good value?

Around ₱268 per can as of July 1, 2026. Check the latest price on Shopee. It’s mahal next to regular wet food, but far cheaper than surgery to remove bladder stones, which is what it’s meant to help avoid. A 4.9 rating across 10K+ sold tells you plenty of owners keep coming back for it. For a medical need, it’s sulit.

Who should buy it

Buy this only if your vet has diagnosed a urinary or stone problem and recommended a urinary diet. Don’t feed it to a healthy dog long-term. If your dog has no urinary issues, you’re paying for a therapeutic formula you don’t need. For everyday feeding, see our best dog food in the Philippines roundup and our how to choose dog food guide.

Alternatives to consider

If your dog doesn’t have a diagnosed urinary problem, this vet diet isn’t the everyday food to buy. The Petsup Complete Nutrition dry dog food, our Best Overall pick, is a high-protein daily kibble at around ₱225 as of July 1, 2026. Feeding a bigger household? The 8kg Pet One Beef Teriyaki dry food wins Best Big-Bag Value at around ₱540 for the 8kg bag.