According to my gastro Dr. NO...........Makes me sick, the colon cleansing companies in the world trying to make a fast buck. Why anyone would want to flush bad bacteria,etc back into their system is beyond me......My ass says EXIT ONLY. Thats where EXCRETA, POO, FECAL MATTER...whatever you wnat to call it comes from. As for cleansing your colon, if you eat a healthy diet with plenty of fiber and lots of water, your system should be clean. So many rumors that the individual colon has 7 pounds of solid watyes build up in hte walls of hte colon.this is BULL $$$$. If yo uare diagnosed with colon cancer, such as my father was 2 years ago, depending on where the cancer is and the stage it was caught, there are many options, such as surgery and chemo. Listen to what a cancer Dr. tells you. If you don't like that opinion, find another Dr.