Below are my top tips for boosting glutathione levels. Eat sulfur rich foods. Glutathione contains a sulfur chemical group, which is kind of like its secret weapon. Sulfur is a sticky, smelly molecule Selenium metabolism from different dietary sources. Dietary intake Download Scientific Diagram Injectable hydrogel with selenium nanoparticles delivery for sustained glutathione peroxidase activation and enhanced osteoarthritis therapeutics ScienceDirect Liposomal Glutathione Uses and Benefits BodyBio Role of Selenium Dependent Glutathione Peroxidases (Seleno GPxs) in Radio Modulation: Lessons for Radiation Oncology Biological Trace Element Research Springer Nature Link