He did, and there is a verse in the same chapter where He had corrected them. Not only that, He had said from the very beginning His point:
26 Jesus answered them and said, Verily, verily, I say unto you, Ye seek me, not because ye saw the miracles, but because ye did eat of the loaves, and were filled.
27 Labour not for the meat which perisheth, but for that meat which endureth unto everlasting life, which the Son of man shall give unto you: for him hath God the Father sealed.
28 Then said they unto him, What shall we do, that we might work the works of God?
29 Jesus answered and said unto them, This is the work of God, that ye believe on him whom he hath sent.
30 They said therefore unto him, What sign shewest thou then, that we may see, and believe thee? what dost thou work?
31 Our fathers did eat manna in the desert; as it is written, He gave them bread from heaven to eat.
32 Then Jesus said unto them, Verily, verily, I say unto you, Moses gave you not that bread from heaven; but my Father giveth you the true bread from heaven.
33 For the bread of God is he which cometh down from heaven, and giveth life unto the world.
34 Then said they unto him, Lord, evermore give us this bread.
35 And Jesus said unto them, I am the bread of life: he that cometh to me shall never hunger; and he that believeth on me shall never thirst.
They evidentally missed that point, in verse 29, and 35. He went on to say in vs 37-39
37 All that the Father giveth me shall come to me; and him that cometh to me I will in no wise cast out.
38 For I came down from heaven, not to do mine own will, but the will of him that sent me.
39 And this is the Father's will which hath sent me, that of all which he hath given me I should lose nothing, but should raise it up again at the last day.
Still, they were stuck on the notion of literally eating him. Like Nicodemous thinking that Jesus is tellimg him to literally be "Born again" (John 3:3-8). The Jews seemed to have a common problem of taking things literally in which Jesus said to them:
12 If I have told you earthly things, and ye believe not, how shall ye believe, if I tell you of heavenly things?
So, with that said, Jesus finally told them plainly, what He really meant by eating His body, and drinking His blood:
63 It is the spirit that quickeneth; the flesh profiteth nothing: the words that I speak unto you, they are spirit, and they are life.
His WORDS.... not His body, not His blood, and certainly not the bread and wine.