I'll continue hijacking the thread with the response I got from Meat Mates:
"We source our chicken meat directly from the carcass of the animal. This meat is dense in calcium and phosphorus given its close proximity to the carcass and this allows us to meet AAFCO guidelines naturally without the need to supplement. Rest assured the physical bones of the chicken carcass are separated from the meat during our extraction process and discarded, however please note some bone residue is included as part of this meat ingredient as a result of the part of the chicken we source from."
"We source our chicken meat directly from the carcass of the animal. This meat is dense in calcium and phosphorus given its close proximity to the carcass and this allows us to meet AAFCO guidelines naturally without the need to supplement. Rest assured the physical bones of the chicken carcass are separated from the meat during our extraction process and discarded, however please note some bone residue is included as part of this meat ingredient as a result of the part of the chicken we source from."