Today with the advances in modern medicine this book is out of date and wrong, yet copies are still being printed. S.I. McMillen, entitled None of these diseases published by Revell in 1963. If Israel obeyed God then they would not get sick. He posits that the laws of God are more advanced than ancient and modern medicine. The rest of the book tries to demonstrate this.
Egyptian medicine seems far more advanced than the simple dietary laws of Leviticus.
Ellen G. White based her diet book on the strict observance of these laws. Most Seventh Day Adventist will follow these laws. Bill Gothard also strictly follows the Levitical Laws. The principles of the New Testament are ignored. I remember attending a Faith Healing service to see what it was like.