The phrase "raw bones" refers to something that is in its most basic and unprocessed state. It means the situation or thing hasn't been altered or modified, and is presented in its original form. Full definition
Feed raw bones for «dessert» (bones are eaten last in the wild) at least once per week. (littlebigcat.com)
While we agree that chewing on raw bones is extremely beneficial for cats and dogs, ground bone can be difficult to digest for cats with inflammatory or irritable bowel diseases. (Radfood.com)
For years, I have been a big advocate of raw bone feeding and take every opportunity to promote it. (peterdobias.com)