The very specific laws of the Israelites concerning which animals may be consumed and which may not would wipe out half the diet of many Americans. Prohibiting all pork, rabbit, deer, and many other land animals. any crustaceans (shrimp, crab, lobster, but not fish), many types of birds (not chicken, though), and most insects, this diet could seem restrictive to many people. Why would God send down these restrictions to His people?
Primarily, the types of animals that are prohibited have certain health risks associated with them. Especially present in these restricted animals is high amounts of cholesterol, which leads to heart disease and circulatory issues. With this in mind, it appears that God has given His people a diet that is healthier and less likely to produce physical issues later in life. God knows all and God cares deeply about His people!
So, while we may joke a bit over kosher dietary limits, it appears the Jews have a pretty good system in place for what to eat and what not to eat. Perhaps we could take a lesson from their book?