If one has 90-100% plant based raw diet, the unabsorbed food is eliminated 24-36 hrs later. Add 6 hrs for the glycogen in the liver, another 6-8 for the glycogen in the muscles. You get 48 hrs at max. I guess the cleansing would start in that case around the 36 to 48 hrs after the last raw meal. 1 to 1 day and a half of real cleansing on a 3 day fast ...