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Description
Glyoxalase-1 overexpression reduces body weight and adipokine expression, and improves insulin sensitivity in high-fat diet-induced obese mice

Basically, it is whichever study comes first

Roshan A, Murai K, Fowler J, Simons BD, Nikolaidou-Neokosmidou V, Jones PH

It can be determined spectrophotometrically by quantifying in vitro the oxidation of NADPH to NADP, before and after the addition of the FAD coenzyme

And dont forget that toxins, sugar, and processed foods rapidly deplete your GSH stores.
