You should believe Christ, who says His Body is the Bread.
Seriously though, try to explain Christ's words from the Last Supper.
Jesus is the Word of God, John 1:1. The Word became flesh, John 1:14. Jesus’ words are life, John 6:63. Jesus’ body is the bread, the bread from heaven, John 6:33. Matthew 4:4 Jesus answered, “It is written: ‘Man does not live on bread alone, but on every word that comes from the mouth of God.“
If anyone eats of this bread, he will live forever, John 6:51. This bread is Jesus’ flesh, which he will give for the life of the world, John 6:53.
Unless we eat the flesh of the Son of Man and drink his blood, we have no life in us. Jesus tells us the truth, if anyone obeys his word, he will never see death, John 8:51.
When we believe in Jesus’ shed blood, we come into the blood covenant with God, Mark 14:24. We believe and this believing is as drinking his blood.
To obey Jesus, to do what the bread from heaven says, this is eating, this is eating the bread from heaven, and it is eating his flesh. Obeying Jesus’ word is equivalent to eating his flesh.
Luke 11:3 Give us each day our daily bread.
Jesus says for us to pray, give us each day our daily bread. That is having Jesus every day, his words, his teachings. We are to eat Jesus every day, which is to obey every day.
John 6:58 This is the bread that came down from heaven. Your forefathers ate manna and died, but he who feeds on this bread will live forever.”
Did you hear what Jesus said? Jesus says he who “feeds on this bread.” That is not a onetime thing. We are to eat every day. We are to obey every day.
Matthew 5:6 Blessed are those who hunger and thirst for righteousness, for they will be filled.
When we are hungry, hungry for God’s truth, we come to Jesus. Jesus says, “I am the bread of life. He who comes to me will never go hungry, and he who believes in me will never be thirsty.” John 6:51
When we come to Jesus, believe, and obey, Jesus gives us water to drink that is, Jesus gives us the Holy Spirit, John 4:10; 14; John 7:38; 39.
1 Corinthians 12:13 For we were all baptized by one Spirit into one body–whether Jews or Greeks, slave or free–and we were all given the one Spirit to drink.
John 6:27 Do not work for food that spoils, but for food that endures to eternal life, which the Son of Man will give you. On him God the Father has placed his seal of approval.” The seal of approval is the Holy Spirit.
When we celebrate the Lord’s Supper, it is in remembrance to Jesus dying for us.
For whenever you eat this bread and drink this cup, you proclaim the Lord’s death until he comes.1 Corinthians 11:26.
Read what Jesus' disciples said to him...
John 4:31 Meanwhile his disciples urged him, "Rabbi, eat something."
32 But he said to them, "I have food to eat that you know nothing about."
33 Then his disciples said to each other, "Could someone have brought him food?"
34 "My food," said Jesus, "is to do the will of him who sent me and to finish his work.
Did you read that? Jesus says his food is to DO the will of him who sent me and to FINISH HIS WORK.
We are to do God's will. God's will is that we obey Jesus' teachings.
Now, that proves we eat the flesh of Jesus when we do what Jesus says to do.
That is how we eat the bread from heaven, the bread of life.
We have to eat every day. We have to obey every day.