Genesis 9
3 "Every moving thing that is alive shall be food for you; I give all to you, as I gave the green plant.
4 "Only you shall not eat flesh with its life, that is, its blood.
This agrees with 1 Tim 4,
4 For everything created by God is good, and nothing is to be rejected if it is received with gratitude;
Alright Symes, if you prove to me that pork, and all other previously unclean meats have ceasesd to be moving things I'll stop eating pork.
While all food are clean and ok to be eaten, not all things we can eat will be healthy, beef fat, eggs yolks, hydrogenated vegetable fats, these are some things we should avoid, they are not healthy, but by the Mosaic law they were ok to eat, pork chops are leaner than any cut of beef, fish with no scales are low in saturated fats, some are rich in omega-3 fatty acids wich are very good for us, those things were not legal by the Mosaic Law, but they are healthier than the other stuff I mentioned thats ok by the Law.
This means that your argument of "God doesn't want us to eat things that are bad for us, therefore we must follow His food laws" is flawed because some things that are legal by Mosaic Law are worst for our health than most thing that were not ok by the Law.