Candy cravings that are so bad are a sign your metabolism is very sensitive, I think. It sounds like anything sweet will dump insulin into your system, and that really starts the craving cycle.
Since this behavior is a centerpiece of the CAD philosophy, you might want to read their book (Carbohydrate Addict's Diet.)
But be cautious. Some people love their plan, some say it just feeds their cravings and makes it worse.