Glutathione deficiencies were frequently seen in the sickest patients during the pandemic. This explains why individuals with poor diets, obesity or compromised gut health were more likely to have worse disease. #nac # Amino acid metabolism in health and disease Signal Transduction and Targeted Therapy Topical glutathione amino acid precursors protect skin against environmental and oxidative stress Cui 2024 Journal of the European Academy of Dermatology and Venereology Wiley Online Library Appraising the Role of Astrocytes as Suppliers of Neuronal Glutathione Precursors