LindaL, I would consult your vet before switching to another food. I know he or she will probably insist on the Royal Canin but maybe bring in the food you are thinking and an ingredients list (along with percentages of ingredients like phosphorus, magnesium, calcium protein etc. on a dry matter basis - you can contact the company for these if need be). My dog had struvite crystals and was supposed to eat the Royal Canin food. I refused because I didn't see meat as an ingredient and if there isn't any meat, what really is in the food? Anyway, I continued feeding her raw but added Wysong's Biotic ph- which is a supplement that makes the urine more acidic. It worked and her crystals were gone. Of course, I just contradicted myself by telling you to consult your vet when I went against my own vet's advice. However, my vet also told me that feeding my dog raw wasn't natural and if I wanted to feed natural I should feed her canned food. Her reasoning was that the meat I was feeding her isn't the same meat that a dog would catch in the wild. Well, I have yet to see a can running in the wild! Regardless, a vet would know the levels of particular ingredients that need to be restricted so if you bring in some good foods and have her/him compare them, then you could feel more comfortable feeding the foods. I would feed canned food but you can also add water to her food or some low sodium chicken or beef broth to increase the pallatability. Or freeze the broth in an ice cube tray and use them for treats. Also, you want to be careful that you're not making her urine too acidic because then you increase the likelihood of calcium oxylate stones which are much more difficult to treat. Struvite crystals usually become an issue when an infection is present because the infection causes the crystals to stick together (thereby causing stones) or stick to the bladder wall (thereby causing an irritated/inflamed bladder wall). Once the infection is cleared up, usually the struvite crystals are gone or are no longer a problem. Dogs can have struvite crystals and be okay but when there is an infection, then they're a problem. BTW, it's been about 8 months since my dog has had crystals and there has been no recurrence. I am still feeding her raw and add about a 1/4 to 1/2 cup of water to her food.