mercury gets stored in tissue. it must first be mobilized before it is available to be chelated(bound to something else for elimination.) chelating without mobilizing leaves it in tissue. mobilizing without chelating lets some of the mercury get stored in other tissues.
the yeast issue is directly involved with the mercury exposure. the thyroid issue is directly caused by fluoride, bromide and mercury.
in all cases, Iodine and selenium are indicated. other chelators can be used, but this must be done with some knowledge of the process in order to be effective.
then there are certain processes in the body which slow down or stop or get otherwise impaired under these conditions. thats why the companion supplements of vit C and B2 and B3 are recommended. people also seem to be low on magnesium and sulphur, to name the top two.
sunlight is essential for calcium utilization. thats how you get real vit D.