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You should keep in mind that cited references to ongoing nutritional scientific study are most likely not accepted by the FDA as conclusive

An important role of GSSG in the NFkB activating signal cascade is suggested by the facts that the potent NFk B inducer, tetradecanoyl phorbol acetate, increases intracellular GSSG levels and GSSG/GSH ratios

Isoenzyme-specific up-regulation of glutathione transferase and aldo-keto reductase mRNA expression by dietary quercetin in rat liver

Similarly, once the inducing agent is removed, the effects on hepatocytes may take a few weeks to resolve (time for the xenobiotic to be cleared and for enzymes to degrade)