PURINA ONE® Adult is a nutritionally tailored recipe for cats aged 1 year and over. Having a balanced gut microbiome is essential for your cat's good health, as it has a direct impact on their immune system. The microbiome is an ecosystem containing trillions of microorganisms that live in the gut and are unique to each cat. The balance of microorganisms is important to support your cat's good digestive health, immune system and overall well-being. PURINA ONE® BIFENSIS® is a unique nutritional formula containing beneficial functional bacteria, Lactobacillus. Scientifically proven, their action strengthens your cat's immune system from the inside and thus helps protect its gut microbiome. PURINA ONE® BIFENSIS® contains high-quality ingredients, including a prebiotic: chicory. This feeds the good bacteria in the gut, in order to improve your cat's gut microbiome to keep it healthy. Healthy digestion, a strong immune system and a shiny coat, see visible results in your cat's health today and tomorrow.