Glutathione is critical for NK cell mediated immunity ScienceDirect Targeting the Cysteine Redox Proteome in Parkinson's Disease: The Role of Glutathione Precursors and Beyond Taking too much of a supplement often causes side effects. This afternoon, my son wanted to go surfing. Forest fire smoke is settling in. He asked if he should take anything to Angelyn Lynch, MD, RPVI Vascular Surgery Tampa, FL AdventHealth