And here are more quotes from Clement of Alexandria to clarify his position:
"The Blood of the Lord, indeed, is twofold. There is His corporeal Blood, by which we are redeemed from corruption; and His spiritual Blood, that with which we are anointed. That is to say, to drink the Blood of Jesus is to share in His immortality. The strength of the Word is the Spirit just as the blood is the strength of the body. Similarly, as wine is blended with water, so is the Spirit with man. The one, the Watered Wine, nourishes in faith, while the other, the Spirit, leads us on to immortality. The union of both, however, - of the drink and of the Word, - is called the Eucharist, a praiseworthy and excellent gift. Those who partake of it in faith are sanctified in body and in soul. By the will of the Father, the divine mixture, man, is mystically united to the Spirit and to the Word.",
-"The Instructor of the Children". [2,2,19,4] ante 202 A.D.,
"The Word is everything to a child: both Father and Mother, both Instructor and Nurse. 'Eat My Flesh,' He says, 'and drink My Blood.' The Lord supplies us with these intimate nutrients. He delivers over His Flesh, and pours out His Blood; and nothing is lacking for the growth of His children. O incredible mystery!",
-"The Instructor of the Children" [1,6,41,3] ante 202 A.D.. ,
And the great Saint Justin Martyr:
"This food we call the Eucharist, of which no one is allowed to partake except one who believes that the things we teach are true, and has received the washing for forgiveness of sins and for rebirth, and who lives as Christ handed down to us. For we do not receive these things as common bread or common drink; but as Jesus Christ our Savior being incarnate by God's Word took flesh and blood for our salvation, so also we have been taught that the food consecrated by the Word of prayer which comes from him, from which our flesh and blood are nourished by transformation, is the flesh and blood of that incarnate Jesus."
" First Apology", Ch. 66, inter A.D. 148-155.