Appetite and desire are two words we need to consider. Appetite speaks more of a desire of the flesh for gratification, either of the body or the mind. There are natural appetites and there are artificial appetites. Having an appetite for food and drink is a natural appetite. Having a desire for tobacco, alcohol, drugs, or anything that is not life-sustaining and beneficial to the body or mind is an artificial appetite. God gave us natural desires and they are not sinful in themselves, but temptation to sin always involves our natural desires. The first sin on earth happened when Eve developed an appetite for that which God said would bring sure and certain death. So our desires can manipulated and directed by outside influences. So knowing this fact and having this understanding, we should take up arms against whatever would affect our appetites and desires.