it's the cooked bones that are the problem. in a BARF(bones and raw food or biologically appropriate raw foods) diet, raw bones, with some meat on them are part of the diet. alex has been on it for 3 years now. i don't give pork bones(too rich for alex, he's had pancreatitis), the chicken necks, backs and wings, turkey necks and backs, as well as raw fish have been his main protein sources. remember, until the late 1940's there were no commerically made dog kibble type foods in the united states.