CWS member Jeannine M. Pitas writes about the relationship between her Catholic faith and being a vegetarian:

I suspect “Catholic” is not the first identity marker most people think of when they think of a vegetarian. Yet for many Catholics—myself included—a vegetarian or vegan diet is an integral part of our religious practice.

Source: For some Catholics, a vegetarian diet goes hand in hand with faith | USCatholic.org