Pacific Ocean Fish Meal Formula Limited Ingredient Diet Grain-Free Weight Control Senior Dry Dog FoodFirstMate's Pacific Ocean Fish Weight Control Senior formula uses wild fish from the herring family as a single source, novel protein. This reduced calorie formula offers delicious kibble with glucosamine to aid in joint health. This formula is also very rich in omega 3 and 6 fatty acids for producing a healthy skin and coat for your beloved senior dog. Single source protein (fish) and carbohydrates (potatoes) means this is very easy to digest.