Cleanse --its actually used by hospitals for heart patients who need to lose weight quickly before sugery. Sacred Heart Diet I think... (i think when i heard about it in the 80s it was touted as the stewardess diet -- you know.
7 day detox- This is called the Sacred Heart Diet, invented to prepare patients for surgery for quick weight loss. You can eat all of the fruits, veggies, and soup you want. Might be a good kick-start?