CAD and CALP are virtually the same. Only differences are that CAD has the concept of using a different eating plan for the week, based on your success from the previous week, and CALP is based on one of the plans from CAD, the one that starts w/ a salad.

This is unneccessarily confusing. If you get the opportunity, read both books and I think you'll quickly sort it out for yourself. Pay attention to the science behind the plans and you'll see that the Hellers have simply rewritten to clarify and ensure balance, but the basis has not changed since their first book, CAD.

Hope this helps, and hope you decide to jump on the bandwagon. It's an easy plan, IMHO much easier than other LC plans. Give it a try and see if you don't feel much better! There are so many here willing to share and help you, it's just amazing!!!