Using Antioxidants to Protect Against Radiation from Medical Imaging. Glutathione is such a critical soldier in our line of defense that our bodies make it themselves. We even have mechanisms that recycle and reuse it. But what happens when our toxic Glutathione: Antioxidant Properties Dedicated to Nanotechnologies Selective effects of whey protein concentrate on glutathione levels and apoptosis in rats with mammary tumors ScienceDirect