Is it safe to do rounds lasting more than 5 or 6 days, especially at such high doses as 100 mg DMSA and 200 mg ALA? ALA seems to suppress the elimination of copper and zinc. I am chelating now just with ALA at 25 mg, but even so I decided to stop taking zinc supplements and iron supplements during the chelation cycle(I think I read that ALA chelates iron as well, so I wouldn't want the ALA to chelate some iron and chelate less mercury).