The Missing Link® Ultimate Senior Formula...The Missing Link Superfood Senior Formula with GREEN LIPPED MUSSEL and Probiotics is to support aging canines. Our Senior Formula nutritionally supports healthy cognitive brain function and digestive system. Adult dogs in the later stages of life are prone to joint issues, digestive and intestinal aging which The Missing Link® provides the proper nutrition that assists in keeping them healthy. This Senior Formula contains an exclusive blend of nutrients that are commonly missing from commercial food diets. These include glucosamine, Omega 3 and Omega 6 fatty ac-ids, dietary fiber, Probiotics, Green Lipped Mussel and phyto (plant) nutrients that promote Nose-to-Tail Health.