Calories not so much addictive
as habit forming.
We (as a whole) are getting fatter because we are taking the same calories in that we did when we had much more active lifestyles.
Eat slightly less and walk everywhere (at pace).
As you lose weight you are either going to have to continue to eat less and less or do more physical work (take stairs 2 at a time and run up short flights).
It can take a while to replace the habit of a lifetime with a new one.
Biting the hand that feeds IT
