Royal Canin Urinary SO Moderate Calorie for Dogs is a complete and balanced diet to assist the nutritional management of the following indications Dogs with or at risk of developing canine lower urinary tract disease and predisposed to weight gain To help dissolve pure struvite uroliths To help prevent struvite urolithiasis To help prevent calcium oxalate urolithiasis To help prevent calcium phosphate brushite urolithiasis This diet promotes a urinary environment unfavorable to the development of both struvite and calcium oxalate crystals Increased sodium chloride content to increase thirst and promote formation of a dilute urine Restricted magnesium levels Controlled levels of calcium and oxalate Restricted phosphorus and protein coOther products from PetCareRx