I havnt been able to find anything about harmfull effects from mms (unless you detox too quick) and I have read Gov. agency test reports, lab tests, scientific reports and a lot of personal testimonials. much of it way way over my head, which is why I am going to try it. After reading about fulvic acid I believe it to be a excelant source of essential goodies and I am going to try it also. I am mostly vegitarian and will admit my diet is lacking. My idea of a good veggy meal is a bag of chips and some dip. Oh well, Im still here and doing better than all my friends of similar age.