Have you ever wondered how people learned what they could and couldn’t eat? Some animals are poisonous while others are harmless. The same is true with plants. I have often thought that people ate things then others saw their reaction to it and knew not to eat that plant or animal. In our Leviticus 11-13 we see that God did list clean and unclean animals for the Jews. Even today there are millions of people in all nations who refuse to eat certain creatures. Furthermore, this proscription of certain creatures as unsuitable and forbidden food is far older than the Mosaic law. These strong rejections of certain meats are deeply rooted in the prehistoric instincts of the human race.
Against this background, the most significant thing about the whole mass of regulations laid down here is that Jesus Christ abolished it in its entirety, “making all meats clean” (Mark 7:19). An apostle elaborated this in saying that, “Every creature of God is good, and nothing is to be rejected, if it be received with thanksgiving: for it is sanctified through the Word of God and prayer” ( 1 Timothy 4:4-5 ). Peter also saw the heavenly vision three times; a vision of a great sheet let down by its corners containing all manner of beasts and creeping things. God told Peter that he should not refuse to eat of those things which God has said are clean.
God has greatly provided for us in the abundance of our planet. There still may be things that we would not eat, but we must remember it is not because God has forbidden it, but that society or culture has placed some type of taboo on it.