My boyfriend, who is about 30 pounds overweight, and his best friend, who is maybe 250 pounds overweight, are considering starting the South Beach diet. I don't know much about the diet, except that it is restricting carbohydrates and foods that your body quickly turns to sugar. Where can I go to better understand this? Does anyone here have any experiences with this? Is it a good idea? I want to know everything I can about the subject from serious eaters before I decide whether or not I'm going to join him.