Can you guys tell me how affective is the south beach diet?

Short term only: South beach - replaces high glycemic index carbohydrates with low. This is effective only in the short term, usually less then 6 months.

Several studies: recently have all come out with the same conclusion: eating less, exercising more will lower weight ! Imagine eating 20 tons of south beach a day! Not Good ! The type of diet is largely irrelevant. The addiction world is just starting to get the concept that finding where you mess up and learning from it is the main thing. You should probably look at this. http://www.amazon.com/dp/0692496157/