Re: the aluminum in clay us NOT absorbed according to 1 link

http://www.sonnes.com/faqs.html#d2

As for the aluminum.....
Q. I've heard that Bentonite has Aluminum in it, is that true?

A. Bentonite contains a small amount of the element aluminum, but it is found complexed into the core of the molecule. It cannot be broken apart from the Montmorillonite molecule, and cannot be absorbed into the human body. We have a piece of literature which describes this in more detail.