I did a Colon Cleanse about 4 months ago, just with psyllium and Bentonite shakes. It worked pretty well. And I am pretty strict on my diet as well. In any case, I'd say unless you are constipated regularly, you shouldn't worry about it. And honestly, even if you are constipated, I'm pretty sure the epson salts were liquify anything in your colon. That stuff is wicked strong.