Much that Jesus said to the crowds and even acted out was symbolic or an illustration. Indeed without an illustration he would not speak to the crowds:
33 So with many illustrations of that sort he would speak the word to them, as far as they were able to listen.
34 Indeed, without an illustration he would not speak to them, but privately to his disciples he would explain all things (Mark 4).
So Jesus decoded his symbolic parables for his disciples only, not for the public at large. By speaking symbolically, those who did not want to believe that he was Godís son, could write off his speech as meaningless ramblings about farm animals and horticulture.
But in reply he said: It is written: Man must live, not on bread alone, but on every utterance coming forth through Jehovah's mouth (Matthew 4:4).
So he humbled you and let you go hungry and fed you with the manna, which neither you had known nor your fathers had known; in order to make you know that not by bread alone does man live but by every expression of Jehovah's mouth does man live (Deuteronomy 8:3).
Scripture: John 6:48-51
"I am the bread of life. Your ancestors ate the manna in the wilderness, and they died. This is the bread that comes down from heaven, so that one may eat of it and not die. I am the living bread that came down from heaven. Whoever eats of this bread will live forever; and the bread that I will give for the life of the world is my flesh."
So bread refers to the word or expression of Jehovah and the word and christ are the same.
pehaps instances of bread or even fish and wine (the primary foods mentioned that Jesus may have consumed) for that matter being utilized refer to a deeper meaning. Bread, fish and wine having deeper symbolic meanings that he also has revealed.