Hey mimami4:
Here is your answere... CALP stands for Carbohydrate Addicts Lifespan Plan by Dr's Heller and Heller. The idea is that you follow the basic low carb plan except for 1 hr a day. In this hour you eat what is called a reward meal. To understand the concept you really should read one of their books. You can check one out at your local library. That is what I usually do. Then if I like the book I go buy it. Saves me lots of $$$$. It is a way of low carbing it with a little leeway. GOOD LUCK