I did not know about these wonderful food laws until Brother John Q. Adams pointed them out to us. Please read the chapters of Leviticus 11 and Deuteronomy 14. It is nice to know which fish are clean for human consumption and what animals are clean for foods. Pork is eaten by many and they learn after a period of time of the disease that they have in their bodies.
Cancer is one common disease of our day.
God tells us in His word our bodies are his temple and not to defile His temple. Smoking and all tobaccos are very harmful and have been proven to also cause dreadful diseases, especially cancer. The herbs are good for mankind.