I’m not pushing keeping Old Testament law, but I do think there were practical reasons why certain hygienic laws were given to the people. My husband gets bad attacks of gout when he eats much pork, and I think all in all he and I both have more arthritic problems when we eat pork. I don’t eat shrimp or shellfish because the theobromine content of it gives me headaches, ditto for very much chocolate - didn’t eat it for about six years at all. I really like bacon, but don’t eat it very often. Interesting.
Certainly. God designed animals and people. He knows the reasons why we shouldn't eat certain animals and so put it down in writing. I think people get confused between what God actually prohibited in scripture and what the Jewish religion teaches about kosher. God's law is actually very general in that pretty much it's to avoid the flesh of certain animals.