If Jesus Christ had celebrated his last supper in Kerala, he would have had par boiled rice, a portion of beef fry, kaalan (a curd based dish in coconut paste), a beans thorran (beans with grated coconut) and kadala (Bengal gram) curry. Or if that is too much food on the plate, let’s say he had dosa and sambar. Then his followers around the world would be tasting dosa and sambar as his body and blood instead of bread and wine during transubstantiation.
It is that simple a logic. He was at a particular place that followed a particular food habit. Same with all the rules in a religious text. Why follow and take up these vestiges in times that have moved far beyond those when they were made, and in places where they have no connect.