Purina Pro Plan Original Senior with Salmon supports key vital functions in cats over 7 years old. Suitable for neutered cats. Key benefits: Contains LONGEVIS, a unique blend of nutrients including antioxidants, omega-3 and omega-6 fatty acids and a prebiotic, proven to extend the healthy lifespan and improve quality of life of cats aged 7 years and above. (Study conducted with 90 cats aged between 7 and 17 years. Findings based on cats fed exclusively on the diet enriched with LONGEVIS versus cats fed a controlled diet. European Patent EP1637041B1.) Helps support key vital functions (immune, renal, digestion) - thanks to a high level of vitamins and extra beta-carotene in a highly digestible recipe specially designed for cats aged over 7. Balanced gut micro-flora for digestive health - thanks to chicory, a natural prebiotic, which naturally stimulates the growth of good bacteria in the cats intestine. Balanced minerals for a healthy urinary system. Promotes a urine pH in the safe range to help minimise the risk of urinary stone formation.