Wysong Optimal Senior - Senior Canine Formula Dog Food Optimal Senior Contains The Highest Level And Quality Of Protein Of Any Senior Dog Food On The Market. 40% Protein. Contains High Levels Of Fresh/Frozen And Dried Meats, Natural Protein And Fat A Grain Free+ Formula! Not Only Grain Free, But High Protein, High Fat, And Very Low Starch. Low Levels Of Carbohydrate And Glycemic Index, Organic Ingredients, High Levels Of Enzymes/Probiotics/Micronutrients, Natural Omega-3:Omega-6 Ratios An Improved Version Of Our Time Tested, Nutrient Dense Natural Dog Food Formulated For Senior Dogs (Original Wysong Senior) No Artificial Additives Or Non-Nutritional Ingredients. Very Palatable And Suitable For All Sizes And Breeds Wysong Has Been A Leader In Pet Nutrition Since 1979