Finally an all-natural digestive aid with BOTH plant enzymes and probiotics. This product assists in the digestion and absorption of nutrients that are necessary to maintain good health. It relieves the extra burden placed on the digestive system because this product breaks down fats, carbohydrates, cellulose, and protein. This formula replenishes enzymes that are easily destroyed by the normal processing of commercial pet food. Enzyme and probiotic supplementation is a great preventive measure to ensure good health. And this product contains NO LACTOSE, sugar or preservatives! Digestive enzymes are special types of protein molecules that catalyze the breakdown of food into components that can be utilized by the body. These proteins are not stored in the body but are released into the digestive system based on the anticipation, aroma, or actual presence of food. Because they are not stored they must be taken with each meal, preferably with the food. Animal Essentials enzymes contain a blend of plant produced enzymes, none of which come from animal sources. Animal derived enzymes will work in only one area of the digestive system, while plant enzymes and probiotics work throughout the whole system, from the mouth to the stomach and into the intestines. As the body ages, fewer enzymes are produced, and supplementation is necessary for optimum health. Also, digestive efficiency can be reduced by excitement, anxiety, or the stress of any sort (travel, separation, working stress, etc.).