My vet also made the recommendation of Royal Canin SO, but after looking at the ingredients, there was no way I was going to feed that! So I switched to a kibble with a higher protein, gave a vitamin C supplement, and D-Mannose. My dog’s urine pH went down to normal levels within a week. The kind of levels where the crystals won’t form (about 5.5.) a friend switched her dog to raw for the same reason, high pH and struvites. Crystals gone, pH normal, within two weeks. Neither case had a UTI present.
