Hill's Prescription Diet Gastrointestinal Biome is a dry dog food for adult dogs with chronic loose stools, diarrhoea or sensitive digestion that hasn't resolved on standard sensitive-stomach diets. The formula targets the gut microbiome directly to restore normal stool quality.

ActivBiome+ technology — a proprietary blend of prebiotic fibres — is clinically proven to feed beneficial gut bacteria and produce short-chain fatty acids that nourish the colon lining. Added ginger supports gastric comfort, while the precise fibre profile helps form firmer stools without causing constipation. Suitable as a long-term diet for dogs with chronic digestive issues. Veterinary authorisation required.

Vets prescribe Biome when intermittent diarrhoea keeps coming back despite probiotics, fibre supplements or other prescription diets. Owners often see firmer stools within a week — the kind of result that ends years of cleaning up after a dog with a fragile gut.