I would use activated charcoal powder instead of the Bentonite or, do psyllium and Bentonite mixed. Doing just Bentonite runs the risk of some of the bentonite sticking to and gumming up your intestine. Charcoal powder absorbs tons of stuff, that is why you don't take it within several hours of taking prescriiption drugs . . .it absorbs those chemicals. It also absorbs biologicals. What it won't absorb is anything that is on the extreme end of the ph scale, such as lye. If you take benotnite mixed with psyllium, then the psyllium helps move the bentonite out of the body so it doesn't get stuck in the intestinal tract and clog up the villi.