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Furthermore, by protecting the delicate myelin sheaths of peripheral nerves from oxidative damage, glutathione supports healthy nerve conduction, potentially alleviating the neuropathic pain and tingling frequently reported by patients with Long COVID and ME/CFS

Rushing to higher doses significantly increases the risk of both local and systemic side effects

10.1016/j.jep.2023.116785 94 RenR.WangZ.WuM.WangH

No noticeable feeling at standard doses

Of these lysine, tyrosine, phenylalanine and tryptophan cannot be processed for energy as their break-down products enter the glycolysis pathway and so cannot be used, thus energy must be obtained from methionine, and the branched chain amino acids (BCA acids)