https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3654245/ snippet below: Several supplements are also in use to address metal toxicities. (i) Taurine [ 49 – 51 ] and methionine [ 52 ] are sulphur-containing amino acids. They are rich in membranes particularly of excitable tissues, and they decrease oxidative stress markers resulting from heavy metal exposure. Practitioners also report using taurine for 6 weeks or so prior to hair analyses, to boost levels and improve detection. (ii) Alpha lipoic acid is a powerful antioxidant that regenerates other antioxidants (e.g., vitamins E and C, and reduced glutathione) and has metal-chelating activity. Both fat and water soluble, it is readily absorbed from the gut and crosses cellular and blood-brain membrane barriers [ 22 , 53 ]. Clinical experience is that it must be used carefully as it poses particular risks of redistribution of metals. (iii) N-acetyl-cysteine (NAC), an orally available precursor of cysteine, is a chelato...