Hill's Prescription Diet i/d Cat Food with ChickenHill's PRESCRIPTION DIET i d Cat Food with Chicken Hill's Prescription Diet i d Dry Cat Food is highly digestible nutrition specially formulated to help reduce digestive upsets and ensure easy nutrient absorption. It is enriched with electolytes and B vitamins help replace lost nurients. Made with Hill's proprietary ActivBiome+ ingredient technology, a special blend of prebiotic Fibres, clinically shown to rapidly nourish the gut microbiome to support