I've been using calcium bentonite clay with great success to detox mercury. I have the MTHFR mutation and got two amalgam fillings removed about 9 months and the detox symptoms (even though I used a bio safe dentist) damn near killed me before I discovered clay. I take baths in clay and drink clay water internally. It helped me in too many ways to list here. After doing lots of research it seemed like the gentlest of all the mercury detox options to me and I'm really glad I tried it. I will never be without it again. Seriously, check it out.