I have a friend that has been suffering with muscle spasms to greater and lesser degrees since childhood. It has been getting much much worse since he's been homeless and is less able to get good food and expensive supplements. He does not have parkinson's or any form of cancer or MS or any common ailment. I strongly suspect that he has Wilson's Disease, the inabilty to excrete copper that causes toxic levels of copper in his brain, kidneys and liver. It is ALWAYS fatal if not treated. I thought that asside from supplementing with zinc acetate and watching his copper intake, he could try cleansing his bowels with Bentonite. However, I don't know if there is a dangerous (for him) amount of copper in the Bentonite. Otherwise, it seems like it would be a good thing for him to do. Do you know exactly what minerals are in Bentonite and if there is any copper in it? Do you have other suggestions?