Body Cleanse.... do you believe in it?

Ok - hold up. Are they saying that "passing the intestinal lining" is good? From what limited biology I remember, isnt there cilia (sp? ) that line the intestines that pull the nutirents out of what you eat? Wouldn't passing the lining of your intenstine damage/destroy or take these cilia with it?

And how in the world did those folks get thier toilets so clean after passing that stuff?