popa-
I happen to know a few people who have been on South Beach for over two years and have stuck to it. That would qualify as long term, no?
The thing about South Beach is that there is no food family that is being cut out. Some think that it is low carb, but actually, you are allowed three whole grain carbs a day, which I don’t think qualifies as low carb.
Have you ever been on South Beach, or are you going on hearsay?