The way I get your drift, you want to put Catholicism on the spot. Unfortunately, the Catholic Church never forbade marriage but celebrate marriage as one of the 7 Sacraments, special moments in human life when God touches us in a special way. Priests and nuns are not forbidden from marriage: they willingly forego marriage to be more effective servants of God, to be "eunuchs for the sake of the Kingdom"(have you encountered this verse in your reading of the bible and pondered on what it means?) Some who cannot keep their vows marry and remain good Catholics.
Here's something for you. In the Middle Ages groups of people called Catharis, Albigensians or Waldenses actually taught that since the human body is corrupt, marriage is a way of promoting human corruption, so these groups forbade their members from marrying. The Catholic Church fought against this unnatural teaching about marriage purveyed by these groups. Protestantism, on the other hand, considers themselves the spiritual descendants of the Cathars, Albigensians and the Waldenses.
As to abstention from certain food, that's prescribed even in the Pentateuch, especially Leviticus. What is important is the intent of abstinence. As part of the holiness laws, abstinence is supposed to make us holier before God, not holier than our fellow Christians.