Feline Caviar Grain-Free Cat Dinner is intended for kittens, pregnant or nursing queens, and active adults. A holistic formula that uses only the finest quality ingredients. Feline Caviar has a pH of 6.1 to 6.4, as cats need a slightly acidic environment. This pH balance lowers the calcium oxalates, helps prevent stones and low magnesium levels help prevent struvite crystals from forming. It is alkaline based and specifically designed to reduce the risk of cancer.