My question that is vegetarianism compatibile with Catholicism or Christianity in general?
I don't see anything in the Bible which prohibits not eating meat. Some people are vegetarians because of their concern for animal welfare.
Vegetarianism is incompatible with the Catholic faith. Only the Catholic faith qualifies as "Christianity in general". All other heretical sects are not Christian.
The sentiment expressed above that one may be a vegetarian out of "concern for animal welfare" is pagan as it places the welfare of animals on par with humans. It is
disgusting that anyone who considers himself a Catholic would even consider such a motive for vegetarianism.
On the other hand, voluntarily
abstaining from meat as a sacrifice to God is laudable and there are records of many saints who did so--but absolutely none of them were "vegetarians."
The difference between abstaining from meat and vegetarianism is very similar to the difference between the Christian voluntarily accepting martyrdom and the person who commits ѕυιcιdє. One action is laudable while the other action condemns.
Traditional Guy is correct that the Bible does not prohibit not eating meat. But the Bible does indeed prohibit actions based on motives that are contrary to the will of God.