Digestive enzymes are very specific. They will only digest the exact food type for which they are named. As an example lipase will digest only lipids or fats as they are commonly called. Lipase will not do anything to digest protein or carbohydrates. For complete digestion you must include all the different enzymes in a product to digest each type of food ingredient. A digestive product that contains only four, five or six enzymes will do a poor job digesting the complex ingredients of today's high quality pet food. That's why we at Ultra-Pet Products formulated Total-Zymes ® with a special blend of FOURTEEN powerful plant-based enzymes to completely digest and deliver all the nutrients of today's modern pet diet, with just one scoop of Total-Zymes ® per cup of any pet food. In addition we have added 120,000 FCCPU of bromelain from pineapple as a systemic Enzyme. This will help support pets with Allergies, Itching and the Painful Stiff Joints of older pets.