Joan, on the South Beach Diet, the first two weeks are the strict part of the diet, during which you don't eat cereals, breads, fruit, etc. The first time I did this diet, I lost an average of 1 lb. a day. I'm sure a lot of it is water weight loss, but the point of that part of the diet is to get control over carb & sugar cravings. After the first two weeks, you add back cereals & breads plus fruits gradually. The weight loss slows down, but it does continue. The first two weeks are the most difficult, but it's not so bad after that, and you are eating a good balance of lean protein, vegetables, fruits and moderate starches. The food is wonderful, and if you like to cook, it's great. You even have dessert. I did not lose any weight last week, but at least I know why, so I can hopefully eliminate the problem. I have one friend who went on this diet because his cholesterol was really bad, and it dropped to within a normal range.
I looked at an ad for that book you mention, and it sounded good to me, but I have a lot of carb cravings, so I thought I would be better off doing this diet.
Have a great evening.
Magnolia