Based on RCC doctrine, yes.
What is the Catholic sacrament of Holy Eucharist? | GotQuestions.org
“…according to the
Catechism of the Catholic Church, paragraph 1366, "The Eucharist is thus a sacrifice because it re-presents (makes present) the sacrifice of the cross, because it is its memorial and because it applies its fruit." The catechism continues in paragraph 1367:
The sacrifice of Christ and the sacrifice of the Holy Eucharist are one single sacrifice: "The victim is one and the same: the same now offers through the ministry of priests, who then offered himself on the cross; only the manner of offering is different." "And since in this divine sacrifice which is celebrated in the Mass, the same Christ who offered himself once in a bloody manner on the altar of the cross is contained and is offered in an unbloody manner . . . this sacrifice is truly propitiatory."
The Roman Catholic Church believes that the bread and wine of the Holy Eucharist become the actual body and blood of Jesus. They attempt to support their system of thought with passages such as John 6:32-58; Matthew 26:26; Luke 22:17-23; and 1 Corinthians 11:24-25. In A.D. 1551, the Counsel of Trent officially stated, "By the consecration of the bread and wine there takes place a change of the whole substance of the bread into the substance of the body of Christ our Lord and of the whole substance of the wine into the substance of his blood. This change the holy Catholic Church has fittingly and properly called transubstantiation" (Session XIII, chapter IV; cf. canon II).
RCC hocus pocus to defend against the charge of cannibalism:
Are Catholics Cannibals?
In the Eucharist, after the priest consecrates the bread and wine and they are, in fact, transubstantiated into the body, blood, soul and divinity of our Lord, our Lord is then entirely present. Neither bread nor wine remains. However, the accidents of bread and wine (size, weight, taste, texture) do remain. Hence, the essential reason why Catholics are not guilty of cannibalism is the fact that we do not receive our Lord in
a cannibalistic form. We receive him
in the form of bread and wine. The two are qualitatively different.