Whether the Eucharist is necessary for salvation?

Objections

Objection 1 : It seems that this sacrament is necessary for salvation. For our Lord said (Jn. 6:54): "Except you eat the flesh of the Son of Man, and drink His blood, you shall not have life in you." But Christ's flesh is eaten and His blood drunk in this sacrament. Therefore, without this sacrament man cannot have the health of spiritual life.
Objection 2 : Further, this sacrament is a kind of spiritual food. But bodily food is requisite for bodily health. Therefore, also is this sacrament, for spiritual health.
Objection 3 : Further, as Baptism is the sacrament of our Lord's Passion, without which there is no salvation, so also is the Eucharist. For the Apostle says (1 Cor. 11:26): "For as often as you shall eat this bread, and drink the chalice, you shall show the death of the Lord, until He come." Consequently, as Baptism is necessary for salvation, so also is this sacrament.