I interpret the words of Jesus ("The man who eats my flesh, and drinks my blood, will have eternal life...") to mean "The man who eats my flesh, and drinks my blood, will have eternal life..."
I interpret the words of Jesus ("My flesh is real food, and my blood is real drink...") to mean "My flesh is real food, and my blood is real drink..."
I interpret the words of Jesus ("This is my body...This is the chalice of my blood...") to mean "This is my body...This is the chalice of my blood...")
...And you are a sheep and live in a pasture?
Jesus expected us to use reasonable sense and to understand that He was saying that we must take His flesh and blood into ourselves spiritually in order to be saved. Not that we should literally drink blood and eat flesh and certainly not that we should worship any material thing turning it into an idol. And by the way, even though Jesus said that He is the bread of life He isn't a slice of bread.
You are ignoring the fact that in the course of the discourse in John Six, most of the crowd abandoned Jesus precisely because they took his words literally, and were horrified, and he did not call them back to explain that he was using a metaphor.
If your theory that the language about his body and blood was metaphorical is true, then Jesus was a lousy preacher. In fact, he was a DECEPTIVE preacher. By his inept preaching, he drove people away from himself, and thus to damnation.