A healthy bladder starts with the right balance of vital nutrients. Excess minerals can promote the formation of crystals in the urine, which can lead to the creation of bladder stones. They can cause discomfort and lead to more serious problems requiring care from a veterinarian. The Hill c/d Multicare Dry Food Prescription Diet was developed by nutritionists and veterinarians to help support your cat\'s urinary tract health. It contains the right balance of vital nutrients to help improve lower urinary tract conditions without surgery. This formula can be fed long term as a means of reducing the recurrence of urinary stones and is ideal for multiple cat households. Key Benefits Clinical Nutrition Specially formulated to support your cat\'s urinary health while controlling stress Clinically proven nutrition to reduce the recurrence of the most common urinary signs by 89% and promote desirable levels of urine pH Dissolve struvite stones in just 7 days (average 27 days) and reduce the risk of estruvitis and calcium oxalates level with controlled magnesium, calcium and phosphorus and phosphorus. Rich in antioxidants, potassium citrate and omega-3 fatty acids. Recommended for permanent feeding of adult cats.