I guess if you are into Jewish ceremonial uncleanness. However, in the words of Jesus in the New Testament gospel of Mark:
Mark 7:14Again Jesus called the crowd to him and said, "Listen to me, everyone, and understand this. 15Nothing outside a man can make him 'unclean' by going into him. Rather, it is what comes out of a man that makes him 'unclean.' "
17After he had left the crowd and entered the house, his disciples asked him about this parable. 18"Are you so dull?" he asked. "Don't you see that nothing that enters a man from the outside can make him 'unclean'? 19For it doesn't go into his heart but into his stomach, and then out of his body." (In saying this, Jesus declared all foods "clean.")