The consumption of consecratedIn the Roman Catholic Church, the moment when, during the Eucharist, the bread and wine are transformed into the body and blood of Jesus, the so-called transubstantiation, by the pronouncement of the sacramental words. bread and wine. Usually this is limited to eating the consecrated hostA portion of bread made of unleavened wheat flour that, according to Roman Catholic belief, becomes the body of Christ during the Eucharist..