IV Therapy CELMED Clinic Should You Take Glutathione? Heavy metal toxicity has an immunomodulatory effect on metallothionein and glutathione peroxidase gene expression in Cyprinus carpio inhabiting a wetland lake and a culture pond. ScienceDirect 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 What is Glutathione Glutathione Reporter