Antioxidants and Chronic Obstructive Pulmonary Disease > Journal of the COPD Foundation NAC benefits in PSC and UC treatment Plasma cysteine cystine and glutathione glutathione disulfide redox potentials in HIV and COPD patients ScienceDirect Best Glutathione Supplement 4 Recommendations in 2026 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 #