South Beach Diet 101

South Beach Diet Phase 2

Updated October 2026. A plain-language guide to the original Agatston plan, not a medical program.

Phase 2 starts on day 15 and lasts until you are close to the weight you want. Nothing from Phase 1 disappears. You add carbohydrates back one serving at a time and watch what happens to hunger.

Add back first

Still a bad idea most days

If weight loss stops and you are hungry again, Agatston's instruction was to drop the last carbohydrate you added, not to restart Phase 1 every Monday. Phase 3 is this same menu, with enough food to hold a stable weight. The food list separates the Phase 1 bans from the Phase 2 additions.