Nutri-Vet Probiotics with Wild Alaskan Salmon Oil is a unique blend of ingredients formulated to help support healthy gastrointestinal function and promote good health in cats of all ages. Omega-3 essential fatty acids help maintain immune health. Probiotics provide a source of live naturally occurring microorganisms that help balance normal intestinal flora. Digestive enzymes support proper digestion. Pure wild Alaskan salmon oil is stabilized with natural antioxidants and guaranteed to provide freshness purity and taste.