The word "digested" means to break down and absorb food in your body, or to understand and make sense of information you have learned or read. Full definition
As a general rule, a dog who is fed a healthy, balanced diet comprising easily digested food will not present with symptoms of an upset stomach. (second-opinion-doc.com)
It is a rich source of easily digested protein and ranks low on the glycemic scale. (rainbowinmykitchen.com)