I've read that the chewing portion is quite important for digestion. Most people eat too fast and don't give food enough time to be acted upon by enzymes in saliva.
David took his men with him and went out and killed two hundred Philistines and brought back their foreskins. They counted out the full number to the king so that David might become the king's son-in-law. Then Saul gave him his daughter Michal in marriage. 1 Samuel 18:27