This is a great question, and probably the most common.  Transitioning into this lifestyle can be difficult physically and psychologically.  Food addiction is real and there are many components involved.  One HUGE component is the food itself.  In the early 2000’s, a group of scientists at UC Irvine discovered that certain chemicals found in foods that we eat have an effect on our satiety and our hunger.  When you’ve been on Eat to Live for several weeks, the effects of these “obesogenic” toxins diminishes, and so does your appetite. Dr. Fuhrman explains that there is a difference between true hunger and what he calls “toxic hunger.” Symptoms of toxic hunger include headaches, fatigue, nausea, weakness, mental confusion, and cramping in the stomach.  When we feel these symptoms, our inclination is to eat so these symptoms go away.  But over time, as that detoxification process advances, TRUE hunger will be experienced, rather than the uncomfortable symptoms of toxic hunger.  Dr. Fuhrman explains that a high nutrient diet will blunt our hunger cravings.  So once the body is well-nourished and junk food is eliminated, the body will regain it’s hunger function, experiencing a desire for food in order to maintain muscle mass, and not going into a fatigued, sick state in the process.