Violien, that's interesting what you said about supressing the immune system. I broke out immediatly after starting DE and then I stopped using it after two large breakouts on my back that looked horribly red and itched like crazy. I thought these had to be either bromide or mercury. I then came down with a cold :(
I used DMSA for awhile after removing my Amalgam fillings, but stopped when I realized I have an Amalgam tattoo. I'm in a quandry :( I was hoping the DE would be a safe way to help remove toxins.