Additionally, Gln functions as a biosynthetic precursor and a scavenger of reactive oxygen species (ROS), playing a role in regulating amino acid pools
During periods of high metabolic demand, intense physical exertion, or cellular stress, the mitochondria can become overwhelmed by partially processed metabolic byproducts, specifically excess acetyl-CoA
A meta-analysis of studies using NAC to increase athletic performance found that there were more side effects (none severe) at 20g/day.[ref] High doses of NAC are used in hospitals by IV for reversing acetaminophen toxicity
10.1016/S0140-6736(13)62062-0 7 BeutlerE.DuronO.KellyB
Andreeff M , Zhao S, Konopleva M, Xie Z, Zhang X, Snell V, McQueen T, Jiang S, K-O K, Schenk T, Weidner D, Estey E, Thall P, Sanchez-Williams G, Kornblau SM, Reed JC