PubMed: 24791752Clinical (RCT / meta-analysis) ref-2.Kumar P, Liu C, Suliburk J, Hsu JW, Muthupillai R, Jahoor F, Minard CG, Taffet GE, Sekhar RV Supplementing Glycine and N-Acetylcysteine (GlyNAC) in Older Adults Improves Glutathione Deficiency, Oxidative Stress, Mitochondrial Dysfunction, Inflammation, Physical Function, and Aging Hallmarks: A Randomized Clinical Trial
Supplied as a lyophilized reference standard for in-vitro laboratory use
While most healthy individuals can get enough vitamin C through a balanced diet, there are specific cases where injections may be necessary or helpful: 1
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For now, safety advocates and scientists worry patients will mistake a spot on the list for an official stamp of approval