Like most other low-carb diets the South Beach Diet is divided into three phases: Phase One (14 days) an initial phase during which carbs are particularly restricted Phase Two during which you may slowly add back carbs that are higher on the glycemic index Phase Three beginning when you have reached your ideal weight which is a long term weight maintenance plan. In simple terms the South Beach Diet differs from other low-carb diet programs in that it emphasises the different types of carbs to be consumed rather than quantities. However like many other low-carb plans greater importance seems to be given to carbs than calories. The South Beach Diet recommends at least 20 minutes of exercise a day. It also recommends fish oil supplements. You need not weigh yourself every day - instead keep an eye on how your clothes are fitting - and if you start to gain weight cut back on the carbs.