Interesting about the bentonite clay, i've never heard anything negative about it before, only how awesome it is for drawing stuff out. I've done about a half dozen colon cleanses each 7-10 days long and have always used it. I mean, i guess it makes sense, clay once hydrated is very sticky. I only have used the Yerba Prima liquid Bentonite, which is very watery, but who knows, i can't see inside my colon. Thank you for the tidbit, i'll definitely stick to the psyllium for sure!