Chapter 18 — Part II: The Sacraments — The Holy Eucharist
Section 101. Why The Eucharist Is Called Bread After Consecration — Here pastors should observe that we should not at all be surprised, if, even after consecration, the Eucharist is sometimes called bread. It is so called, first because it retains the appearance of bread, and secondly because it keeps the natural quality of bread, which is to support and nourish the body.