There is speculation that during medieval times, people indulged in rotten meat. Why? Well, first, there was no way to keep food cold and many believe that preservation methods were too primitive or many ways did not exist. It has been said that the cooks of that era used spices to disguise the taste of meat that was well on its way to rotting.
Well, this likely isn't true. Medieval people hunted for their meat. They usually cooked and ate it within days. So in reality, they ate their meat in a much fresher state that we do today.
Medieval people had several ways of preserving meat which included drying, smoking, soaking in brine, and packing it in barrels of salt.
Spices were hard to come by and when they were, they cost a lot. So they would never waste it to disguise spoling meat. Besides, bad food makes people violently ill.