What's your criteria for picking and choosing which "truth" is merely non-binding "regulatory law" and which "truth" is binding "moral law"? After all, God said "Ye shall therefore keep my statutes and my judgments and shall not commit any of these abominations." Lev. 18:26.
In the Book of Acts. The issue came up several times and the Apostles and church leaders discussed it quite thoroughly. It was something the early church wrestled with and settled long ago.
Peter also had a vision where God declared all foods clean.
The account is in Acts Ch 10 but is a bit much to cut and paste.
Here’s a link:
http://www.biblegateway.com/passage/?book_id=51&chapter=10&version=31