The results vary from person to person, depending upon how overweight the individual is. Of course, activity during the independent phases will have an effect on the end results also. However, judging by the statistics of those who have already practiced the South Beach Diet, the average weight loss during the first period is between eight and fifteen pounds. The second Phase usually results in a more gradual, steady weight loss of two pounds per week, roughly. The final phase is a lifelong practice, and should restore you to your ideal weight for your height, age and normal build.