Yes, this is what Catholics believe.
At the Last Supper, Jesus said, "Take this bread. It is my body." Then he said, "Take this and drink. This is my blood. Do this in memory of me."
Catholics believe this was the First Eucharist, that through a miracle the bread and wine actually became the body and blood of Jesus Christ.
Catholics reenact the Last Supper during every Mass, where God, acting through the priest, changes the bread and wine into the body and blood of Jesus Christ.
This is a great sacrament of Thanksgiving and unity of Catholics.
By the way, the Eastern Catholic, Oriental Orthodox and Eastern Orthodox Churches, the Assyrian Church of the East, the Lutheran and many Anglican Churches also believe in the Real Presence of Jesus Christ in the Eucharist. This is more than half of all Christians in the world.
For more information, see the Catechism of the Catholic Church, sections 1322 and following: http://www.usccb.org/catechism/text/pt2sect2chpt1art3.shtml
With love in Christ.
transubstantiation of the eucharist, or the belief that Jesus Christ becomes present in the bread when the words are said by a priest at mass
The Great Amen when the congregation asserts its belief that Jesus Christ is now present on the altar under the forms of bread and wine.
The bread and wine of the Eucharist symbolises the body and Blood of Jesus.
The part in mass which you present the gifts of bread and wine is in the offertory part.
During the concecration of the Eucharist during the mass, the bread and wine becomes the body and blood of Jesus Christ.
The light or candle over the tabernacle tells you Jesus is present. At mass, Jesus is present in the Eucharist; also in the scripture readings.
Jesus is present in the WORD (readings and Gospel).Jesus is present in the PEOPLE.Jesus is substantially present in the EUCHARIST (Body and Blood).
The last meal Jesus spent with his Apostles is called the Last Supper, consisting of only bread and wine. Jesus said a blessing, saying that the bread was the bread of life, and the wine was Jesus' blood. If you go to a Catholic mass, there will be something called a communion, where you take the blessed bread and wine and drink it.
As Catholics we present wine and unlevened bread (as wafers) to the priest because Jesus ate these and served them to his disciples saying when you eat this bread and drink this wine think of me for they are the body and blood of Christ.
The most important and central part of mass is the transubstantiation. This is when the bread and the wine become Jesus' body and blood.
It is the Transubstantiation or Consecration of the Bread and Wine into Jesus' Body and Blood.
because after the preacher blesses it...they say the wine is Jesus's blood and the bread is his body