Do you mean THIS Gospel?
“The bread that I will give is my flesh for the life of the world. (53) The Jews therefore strove among themselves, saying: How can this man give us his flesh to eat? (54) Then Jesus said to them: Amen, amen, I say unto you: except you eat the flesh of the Son of Man and drink his blood, you shall not have life in you. (55) He that eats my flesh and drinks my blood, hath everlasting life; and I will raise him up in the last day. (56) For my flesh is meat indeed and my blood is drink indeed. (57) He that eats my flesh and drinks my blood abides in me and I in him. (58) As the living Father has sent me, and I live by the Father: so he that eats me the same also shall live by me. (59) This is the bread that came down from heaven. Not as your fathers did eat manna, and are dead. He that eats this bread shall live forever.”
(61) Many therefore of his disciples, hearing it, said: This saying is hard,’ and who can hear it? (62) But Jesus, knowing in himself, that his disciples murmured at this, said to them: Doth this scandalize you? (63) If then you shall see the Son of man ascend up where he was before?.(64) It is the spirit that quickens: the flesh profits nothing. The words that I have spoken to you, are spirit and life. (65) But there are some of you that believe not. For Jesus knew from the beginning, who they were that did not believe, and who he was, that, would betray him. (66) And he said: Therefore did I say to you, that no man can come to me, unless it be given him by my Father. (67) After this many of his disciples went back; and walked no more with him. (68) Then Jesus said to the twelve: Will you also go away?
And still the Catholics insist it’s the flesh.
The flesh profits nothing. Eating Jesus doesn't do a thing.
It's the Spirit who gives life, not eating.