My dog has a duality of chronic inflammatory pancreatitis that is creating damp phlegm in her kidneys and hence bladder stone issues. This is what the holistic vet is working on. It surprises me, that the regular vets don’t even know this. However, I am looking for a good nutritionist vet, for making the appropriate raw diet myself. There is someone online, that you can pay for this service (but I’m a little leary to give my personal info online)! Here is the information I found online, if you are interested. She had some good things to say, such as me feeding a natural diet that included sweet potato is not good for my dog because—if the stones she is forming are calcium oxalate, you should not be feeding sweet potatoes due to their content of oxalic acid. It is also vitally important for kidney health to have sufficient calcium in the diet to 1. meet the dog’s needs and 2. bind excess phosphorus, and in typical, supplemented diets this is usually severely deficient.
Calcium Oxalate Urolithiasis - VetFolio
In September 2008, Cosette, a Shih Tzu belonging to Atlanta-area dog trainer Cathy Bruce, was diagnosed with 20 calcium oxalate bladder stones. In an effort to avoid surgery, Bruce experimented with her dog’s diet. She was able to raise Cosette’s urinary pH slightly, but it never got above 7.0. Cosette disliked the new foods and lost a pound while follow-up X-rays (taken three and six months after diagnosis) showed no change.
Oxalate Stone Diet, for Treating Kidney Or Bladder ..
Alternatively, you could try feeding a commercial diet that doesn't have any high-oxalate ingredients, along with the same supplements listed above. I'm not sure which commercial foods might be best to use, or whether any will work for stone-forming dogs. Canned foods usually are higher in protein and lower in carbohydrates (which is where you find most oxalates), but may be prohibitively expensive for large dogs. Frozen and refrigerated raw and cooked diets may also be an option, but are even more expensive than canned foods.
canned varieties use calcium citrate (although they also include dicalcium phosphate), with a couple of group 2 vegetables (mustard greens, sweet potato, barley), which are far down the ingredient list, meaning the amount must be small (there is less sweet potato than calcium).