Nutrition is truly the foundation to our health.  Our body tells us through hunger pains when it needs different nutrients to maintain regular body function.  When we put the right things into our body, our mind gets the signal that we are satiated.  We feel satiated when our bodies have what they need to facilitate the reactions that allow us to perform our activities, fight off infections, and ultimately heal.   In this way, putting the right foods into our bodies, diminishes cravings for foods that we really don't need.  Specific nutrients are depleted by certain lifestyles or health conditions, this understanding allows your health care practitioner to formulate and establish the right eating habits for each individual.