conservation of glutathione s-transferases S-transferase: A versatile and dynamic enzyme Glutathione-S-Transferases as Potential Targets for
Description
Further evaluation included normal hemoglobin A1c, normal TSH, negative HIV and syphilis serologies, normal vitamin E, and a low vitamin B6 level of 2 mcg/L (reference range 550 mcg/L)

The many colors of asparagus contribute to the antioxidants that help your body fight free radicals, but you cannot overcook the asparagus

It's an ambiguity acknowledged by the review's authors, who state that more research is needed to clarify optimal amounts and to identify "sub-groups of individuals most likely to respond to particular nutrients or foods." Speaking with a doctor is your best first-line action to determine whether you could benefit from swapping dietary glutathione for a supplement, or vice versa

Neuropsychobiology, 9 (4), 197-206
