The OP's characterization of Col 1:21 as referring to Torah food laws is a mis-characterization. Torah food laws are never mentioned nor implied in Col 1:20-23.
Col 1:20, 21 - If you have died with Christ to the spiritual forces of
the world, why, as though you still belonged to the world, do you
submit to its regulations: “Do not handle, do not taste, do not
This is discussing other worldly regulations, not specified, but presumably part of the rising tide of ascetic ideas that was gaining popularity in the time of Peter's letter. It may also refer to some teachings of some extreme Jewish leaders who went beyond the Torah laws as well.
The food regulations found in places like Leviticus were definitely given by God to the Israelites as the texts says repeatedly. Whether they are still appropriate for Christians is another matter entirely, but the regulations as listed in Leviticus were unquestionably given by God.
Ellicott correctly observes in his comments about Col 1:21 -
There is in the commands a climax of strictness. “Handle not” (the
unclean thing), “taste it not,” “touch it not” with one of your
fingers. It will be noted that all these commands are negative, not
positive. They are marked by the ordinary ascetic preference of
spiritual restraint to spiritual energy.
Barnes is similar:
See Schoetgen, and Pict. Bib. in loc. "They allowed themselves no food
that was pleasant to the taste, but ate dry, coarse bread, and drank
only water. Many of them ate nothing until sunset, and, if anyone
touched them who did not belong to their sect, they washed themselves
as if they had been most deeply defiled. Perhaps there was at Colossae
a society of this kind, as there were in many other places out of
Judea; and, if there was, it is not improbable that many Christians
imitated them in the uniqueness of their rules and observances;"
compare Jenning's Jew. Ant. i. 471, and Ros. Alt. u. neu. Morgenland,
in loc. If this be the correct interpretation, then these are not the
words of the apostle, forbidding Christians to have anything to do
with these ordinances, but are introduced as a specimen of the manner
in which they who enjoined the observance of those ordinances pressed
the subject on others.