[ADSUM]

“Whoever eats My flesh and drinks My blood has eternal life, and I will raise him up at the last day. For My flesh is food indeed, and My blood is drink indeed” (John 6:54-55).

Read more: http://www.gotquestions.org/seven-Catholic-sacraments.html#ixzz3DIcsu4c6

53Jesus said to them, “Amen, amen, I say to you, unless you eat the flesh of the Son of Man and drink his blood, you do not have life within you.

[CynicalBear]

You left off the rest of that passage where Jesus explained that the "flesh profiteth nothing" but that it was the Spirit.

Of course Catholics call it an "unbloody sacrifice" but then drink the real blood of Christ right?