Natural Greatness Urinary - Struvite is a hypoallergenic, grain-free complete wet food formulated for junior and adult cats with feline idiopathic cystitis and struvite urolithiasis. This food is not suitable for pregnant and lactating cats, kittens and cats with liver failure due to bile secretion. It is recommended to use this food for 6 months. After this period and after an evaluation, prolong the diet if necessary. To eliminate struvite crystals, use for approximately 5 - 12 weeks to reduce the risk of new crystals appearing in 6 months. Composition: Chicken (45%), Turkey (15%), Minerals (1%), Salmon oil (0.1%), Glucosamine (0.09%), Chondroitin sulfate (0.03%)