Royal Canin Gastrointestinal vs Hill’s Prescription Diet i/d: which vet-recommended GI diet fits your cat?
Both are prescription diets your vet has to authorize, but they solve different problems. Here’s how Royal Canin Gastrointestinal Fiber Response and Hill’s Prescription Diet i/d Digestive Care differ on fiber strategy, protein and life stage, and which one fits your cat’s situation.
