Whats up with these? I know several people at work who did it and several more that are planning on doing it. They say the average adult has between like 5-20lbs of excess crap in their intestines and colon. I don't think losing that weight is going to make you look any different but htey say its for health reasons. They say with all that crap in your intestines and colon, it slows the absorbtion of nutrients and minerals and crap. Anyone got any info on this or actually have done a colon cleanse? How did it go? Is it safe? Is it even worth it?