Why and when did they stop selling pork chops with kidney attached?

Pork chops with the kidney attached were commonly sold in the past as a way to verify the freshness of the meat. However, as food safety standards and regulations have become more stringent, the practice of selling pork chops with the kidney attached has largely been discontinued due to concerns about cross-contamination and foodborne illnesses. This change occurred gradually over time as the industry adapted to new guidelines and best practices in food safety.