Keto Go Diet The South Beach Diet has three separate phases in which in each phase, you wean yourself away from certain foods and incorporate other South Beach Diet friendly foods. The diet promises that you will lose 8-12 pounds in the first two weeks as long as you adhere to the guidelines. The South Beach Diet supports a clean way of eating that is void of refined sugars and trans fats. It also has thousands of satisfied clients, updated research in the 2008 release South Beach Diet: Supercharged, and a maintenance plan after weight