Vitamin C actually does chelate a little bit. According to my doctor, according to other stuff I've read. not a major chelator but it does a little bit.

I wasn't aware that DMSA could cause immune system suppression, thanks for pointing that out. Where did you read that?

I really like the black walnut hull for pathogens... of all sorts I think, plus I have been using just a bit of golden seal root extract, maybe every few days only. I added a good few points toward better health since using the black walnut, golden seal, and doing the liver cleanses.

I agree that mercury/heavy metals (and other environmental toxins) causes things like parasites/pathogens to flourish and once the pathogens are directly addressed a lot of the so-called 'mercury' symptoms disappear.