Hill's PRESCRIPTION DIET Gastrointestinal Biome with ActivBiome+, a new ingredient technology, to promote regular healthy stools and support digestive health. ActivBiome+ ingredient technology, is a proprietary blend of active fibres clinically proven to nourish gut microbiome to support digestive health and well-being. Also contains high levels of Omega-3 fatty acids (DHA & EPA). This diet promotes regular bowel movements, balances digestive function and supports beneficial gut microflora to promote digestive health.