Animal digest is often considered a substandard pet food ingredient. In some cases, this is because the word "digest" is mistakenly thought to describe the contents of the digestive tract. The word "digest" in "animal digest" refers to the digestive process used in production, not the ingredients.The process starts with animal protein such as muscle and soft tissue supplied by USDA-inspected facilities.These ingredients are processed in order to break them down, similar to the process of digestion in the body. The resulting digest is a liquid, but can also be made into a paste or powder.Animal digest is a high-quality ingredient that provides an excellent source of protein and enhances the palatability of dog & cat foods.