Purina Pro Plan 1+ Vital Functions Salmon Adult Dry Cat 1.5kg - Enriched with a specific blend of nutrients to help support brain function (including memory and adapting to new situations). Vital Functions supports cats' key vital functions (brain, immune, kidney). It helps support natural defences and helps promote healthy kidney function. Salmon is the n°1 ingredient. Science Based Nutrition developed with Purina veterinarians.