Complete Pet Food for Cats Aged 11 Years and Over. Find out more information on https://purina/packaging. Purina ONE Senior 11+ is a nutrition targeted to answer the specific needs of cats aged 11 years and over. Having a balanced gut microbiome is essential for the good health of your cat. It has a direct impact on their natural defences. 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 for a positive effect on your cat's digestive health, natural defences, and overall well-being. Purina ONE Bifensis is nutritional formula with a beneficial functional bacteria: Lactobacillus, scientifically proven to strengthen your cat's natural defences from the inside out and helps support a healthy gut microbiome. Helps support healthy ageing thanks to adapted nutrient profile. Appropriate energy to help avoid excessive body weight loss supported by an adapted protein/fat ratio. Scientifically proven to help support your cat's natural defences thanks to lactobacillus specific functional bacteria. Helps to keep skin and coat in glowing health thanks to omega 3 & 6 fatty acids and essential vitamins and minerals. Helps improve gut microbiome balance thanks to chicory, a prebiotic. Healthy bones and good mobility promoted by minerals, vitamin D and a lean body. Chicken is the #1 ingredients a good source of protein and amino acids to help build and maintain strong muscles