Is your question coming from your reading of John 6? 47 Very truly I tell you, the one who believes has eternal life. 48 I am the bread of life. 49 Your ancestors ate the manna in the wilderness, yet they died. 50 But here is the bread that comes down from heaven, which anyone may eat and not die. 51 I am the living bread that came down from heaven. Whoever eats this bread will live forever. This bread is my flesh, which I will give for the life of the world.” 52 Then the Jews began to argue sharply among themselves, “How can this man give us his flesh to eat?” 53 Jesus said to them, “Very truly I tell you, unless you eat the flesh of the Son of Man and drink his blood, you have no life in you. 54 Whoever eats my flesh and drinks my blood has eternal life, and I will raise them up at the last day. 55 For my flesh is real food and my blood is real drink. 56 Whoever eats my flesh and drinks my blood remains in me, and I in them. 57 Just as the living Father sent me and I live because of the Father, so the one who feeds on me will live because of me. 58 This is the bread that came down from heaven. Your ancestors ate manna and died, but whoever feeds on this bread will live forever.” 59 He said this while teaching in the synagogue in Capernaum.
Here Jesus is speaking figuratively about his body and blood in contrast with the manna, which was God's literal food for the desert-wandering Israelites. He is spiritual Food for us who follow him. In fact, all of the "I am" claims of Jesus identify himself with God the Father as one God with him. They are figurative claims pointing to real spiritual reality.
Therefore, to answer your question, Jesus doesn't call us to eat his physical flesh and drink his real blood. He wants us to "feed" on his Word, the Bible, since he is the Word become flesh, who feeds us through his Word, the Bible.
