Effect of ascorbic acid on reduced glutathione level in arsenic loaded isolated liver tissues of rat Glutathione Is Involved in the Reduction of Methylarsenate to Generate Antibiotic Methylarsenite in Enterobacter sp. Strain CZ 1 Applied and Environmental Microbiology We are all being exposed to heavy metals. Through food, water, cookware, dental materials, and the air we breathe. The question isn't IF you have heavy metal exposure, it's how well your Glutathione is for preventing damage caused by toxicants! P.S. I got my PhD studying glutathione in relation to reproduction, fertility, and cancer. They called me Glutathione Girl (This is for Arsenic toxicity and its mitigation in ectomycorrhizal fungus Hebeloma cylindrosporum through glutathione biosynthesis ScienceDirect Arsenic Detoxification and Your Genes