Something about Jesus words escapes Catholics.
It's not the eucharist that gives life; it's the SPIRIT.
The words Jesus spoke are that the FLESH is no help at all.
The WORDS Jesus spoke are spirit. The WORDS Jesus spoke are life.
Baptism and communion are physical demonstrations of spiritual realities, not the realities themselves. They show what spiritual reality has already happened, they don't make it happen.
God is not a puppet that can be manipulated at the beck and call of man.
Not nearly so much as escapes many Protestants. Throughout the Gospels Jesus clearly differentiates between "the flesh" (our flesh) and "my flesh" (His flesh). This is no exception.
Peace be to you