According to Leviticus, God gave his people some very simple but easy to
determine guidelines for food they ought eat. Fish that have scales and not
those without, not to eat scavengers, but to eat hooved animals that chew
their cud and etc.

How then does the New Testament' scriptures  that speak of unclean being
clean apply? Granted I know Peter's trance or dream or whatever was
netaphorically speaking of the visitors he was about to get who were
gentiles and not Jews, but is there a food related application to it as
well? Curious of your thoghts. Has the New Testament made the Leviticus
rules obsolete in any way.

Rom 14:19-21
19 So then we pursue the things which make for peace and the building up of
one another.
20 Do not tear down the work of God for the sake of food. All things indeed
are clean, but they are evil for the man who eats and gives offense.

Acts 10:11-16
11 and he saw the sky opened up, and an object like a great sheet coming
down, lowered by four corners to the ground,
12 and there were in it all kinds of four-footed animals and crawling
creatures of the earth and birds of the air.
13 A voice came to him, "Get up, Peter, kill and eat!"
14 But Peter said, "By no means, Lord, for I have never eaten anything
unholy and unclean."
15 Again a voice came to him a second time, "What God has cleansed, no
longer consider unholy."