Hill's Prescription Diet i/d Low Fat Digestive Care Dry Dog FoodHill's Prescription Diet i d Low Fat Digestive Care Dry Dog Food Hill's Prescription Diet i d Low Fat Dry Dog Food is highly digestible low fat nutrition especially formulated to help settle digestive upsets in dogs with difficulties digesting fat. Fortified with Hill's breakthrough ActivBiome+ ingredient technology clinically shown to rapidly activate the gut microbiome to support digestive health and well being. It also includes prebiotic fibre,