Readers of this thread can believe you, or Christ (John 6).
For example, John 6:40:
For this is the will of my Father, that everyone who sees the Son and believes in him may have eternal life, and I shall raise him (on) the last day."
Or John 6:47:
Amen, amen, I say to you, whoever believes has eternal life.
Or even John 5:24:
Amen, amen, I say to you, whoever hears my word and believes in the one who sent me has eternal life and will not come to condemnation, but has passed from death to life.
And when you consider the multiple other references where Jesus says that we are saved by faith. And the same claims made by Peter and Paul.
So either Jesus is lying because he claimed in one place that you must eat His body (taking John 6 literally) as well as faith being all that's needed (John 5 and John 6 literally)
- or -
Jesus is talking figuratively throughout about being consumed. That we must take His teachings internal to us to change our hearts.
Personally, I'll go with the interpretation where Jesus does not contradict Himself, but you can choose whichever you want. It's patently obvious you will ignore this anyway.