Because God revealed to the apostles that the dietary laws of the Old Covenant were no longer binding upon Christians (Acts 10:9-16). Paul stated:
Therefore let no one pass judgment on you in questions of food and drink or with regard to a festival or a new moon or a sabbath. These are only a shadow of what is to come; but the substance belongs to Christ (Col. 2:16-17).
__________________ "If anyone comes to me, I want to lead them to Him." --St. Edith Stein