Romans 14:14 : I know, and ant persuaded in the Lord Jesus, that nothing is unclean of itself: save that to him who accounteth anything to be unclean, to him it is unclean. By this emphatic statement Paul declared that the distinction the law made between clean and unclean animals was no longer in force. The Gentiles were right and the Jews were wrong in the matter of eating meats. On this point it took a special revelation to Peter to convince him that such legal distinctions were no longer in force (Acts 10:9-16). And yet, if a man thought the Lord prohibited the use of certain animals for food, he should not so use them. A man should not go against his convictions, and thus wound his conscience.
No thoughtful Christian will try to cause any one to go against his convictions, however foolish he may think his convictions are. Teach him what is right, but do not try to induce him to do what he thinks is wrong. Do not destroy his conscience.