Yes that is it -
I know of quite a few people that have lost so much weight on it, but one of the things they mention is that you must do no stronger exercise other than walking - that is a problem for me, and I swim and do Karate 4 times a week ...... so, wanted to find out more from anyone who may have done it AND exercised (because all the people I know are COUCH POTATOES!!!).

Thanks tho