YES as I posted earlier all of the answers for John 6 can be found in the words of Peter at the end…
67 Jesus said to the twelve, “Do you also wish to go away?”
68 Simon Peter answered him, “Lord, to whom shall we go? You have the words of eternal life;
69 and we have believed, and have come to know, that you are the Holy One of God.”
Now does Peter talk about the bread? NO!
He addresses what the others left over, the divinity of Christ, Peter heard the message that one would be saved by BELIEVING in Christ as He had taught in this discourse.
This event opened because the crowd wanted PROOF, a SIGN, and so they asked for food.
Jesus made the transition to the manna because of the demand of the crowd for food to prove what he said.
This dialogue is on faith without signs , it is on being saved by faith. I’m sorry MfM but that is a biased interpretation based upon the teachings of modern men and not at all what the New Testament teaches on this subject in it’s own topical context, or the teachings of the early church.
Peter was known to be ineloquent in his verbal responses to Our Lord, and this is another such case. You have to remember that these 12 had been with Him from the beginning and have been exposed to virtually every miracle and message (and their private instruction to them) and so I see this as Peter actually expressing something to the effect of “After all I have seen and heard from you Lord. This too I believe.”
I hope that helps some more.