Found this info on the web. Hope it helps ~ Cathy
When the infection is treated by the correct antibiotic, cranberry juice Capsules (not cranberry juice) can be given to the dog. These help to stop bacteria from adhering to the bladder wall and help prevent future infections. Some people have had success keeping the urine acidic, which helps prevent these crystals from forming, by feeding acidic foods and avoiding alkaline foods. A raw, natural diet is high in acidic foods.
Because bladder infections lead to high alkaline urinary pH and struvite crystals, many people, including many vets, make the mistake of treating the problem by acidifying the diet. But that is confusing cause and effect. Alkaline pH and struvite crystals are not caused by a diet of alkaline foods; they are usually caused by bladder infections. Therefore, trying to make the urine more acidic will not get rid of the infection. Alkaline pH can also be normal, as pH can vary a great deal even in the same dog at different times of the day, and also by the way the urine was captured and handled before testing.
If your dog has struvite bladder stones, then acidifying the diet, along with treating the infection, can help dissolve the stones. Ascorbic acid (a form of vitamin C), and distilled water can help with this. , Acidic foods include chicken, beef, eggs, fish, pork, cottage cheese, yogurt, rice (brown and white), beans, nuts and all seafood. See http://www.herbtime.com/InformationP...kalineAcid.htm
for more information on acidifying and alkalizing foods. See http://www.marvistavet.com/html/cani...er_stones.html
for more information on struvite bladder stones.
Calcium Oxalate crystals tend to affect more males than females. Common breed occurrences include Yorkshire Terriers, Miniature Poodles, Lhaso Apso, and Miniature Schnauzers. Calcium Oxalate crystals can also be found in a healthy dog, but are more prone to develop into stones in some dogs. The pH in dogs with these types of crystals is usually acidic or neutral. It is thought that some dogs that are more prone to these types of stones have an inherited weakness that prevents them from forming nephrocalein, which prevents calcium oxalate stone formation. While these stones are mostly treated by surgically removing them, there has been some success with reducing the oxalate rich foods in the diet and working to alkalize the urine pH.
Alkalizing foods include apples, bananas, cabbage, broccoli, beans, potatoes, pumpkin, millet, honey, alfalfa, non-distilled vinegar (organic apple cider vinegar), squash and most fruit and most vegetables.
High oxalate foods to avoid include beet greens, rhubarb, spinach, beets, raw endive, dandelion greens, okra, kale and sweet potatoes. http://www.marinurology.com/articles...ds/oxalate.htm