glutathione depression Frontiers glutathione serotonin Trajectories of late-life
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Am J Gastroenterol (2010) 105(11):24208

(PubMed) Nourhashemi F, Gillette-Guyonnet S, Andrieu S, et al

J Neuroinflammation 17(1):11

A notable double-blind RCT in 262 elderly subjects found that NAC (600 mg twice daily) for 6 months significantly reduced influenza-like episodes only 25% of NAC-treated subjects who seroconverted to influenza A developed clinical symptoms, compared to 79% of placebo subjects (De Flora et al., Eur Respir J, 1997) [40]

Vitamin B12 is closely involved with the formation of a fatty substance around nerve axons called the myelin sheath

Missing occasional doses should not significantly impact results
