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Description
[DOI] [PMC free article] [PubMed] [Google Scholar] 56.Sadek B., Saad A., Sadeq A., Jalal F., Stark H

Who Should NOT Take Glutathione

By blocking NNMT, it shifts intracellular NAD+ and S-adenosylmethionine (SAM) levels, two cofactors tied to energy metabolism, redox balance, and gene regulation in laboratory models

Parenteral administration (e.g., intramuscular/subcutaneous/intravenous) increases the risk of this complication [8,9,74,75,76,77]
