South Beach is a popular DIET and lifestyle plan that has been around since the 1990s. It is a low-carb, high-protein DIET that emphasizes healthy eating habits and exercise. The two crossword solutions for the term SOUTH BEACH, E.G. are DIET (4 letters) and FADDIET (7 letters). DIET stands for Dietary Intervention for the Treatment of Obesity, which is the name of the South Beach DIET. FADDIET stands for Fad DIET, which is a term used to describe any DIET that is popular for a short period of time.