The particularity of this amino acid is its bifunctionality, and its other essential role is the building up of cellular antioxidant defenses via the biosynthesis of the most conserved and abundant non-enzymatic antioxidant in the cell: glutathione
Deisseroth, AB, Kantarjian H, Champlin R, Cabanillas F, Keating M, Reading C, Andersson B, Claxton D, Robertson B, Escudier S, Andreeff M , O'Brien S, Kornblau S, Ellerson D, Hanania E, Fu S
Vitamin B12 and Folate Deficiency: Treats deficiency-related conditions like megaloblastic anemia and neurological disorders
Immune support Glutathione contributes to normal white-blood-cell function, so there is a plausible mechanistic link to immune support, and patients frequently seek it for that reason
10.1186/s12868-015-0161-7