Frontiers Glutathione deficiency in the pathogenesis of SARS CoV 2 infection and its effects upon the host immune response in severe COVID 19 disease FDA highlights concerns with using dietary ingredient glutathione to compound sterile injectables FDA Glutathione deficiency and heart failure: a systematic review of human and animal evidence ScienceDirect The reason some people stay sick despite treatment often comes down to one molecule. Glutathione is the most abundant antioxidant inside your cells. It protects mitochondria, recycles other antioxidants, and repairs Glutathione Benefits for Gut Health Nikki Yelton RD