glutathione kidney is the body's most powerful antioxidant and plays a primary role in the protection of all cells from daily metabolic stress, oxidative stress and toxic chemicals. Deficiency of glutathione contributes to Effects of administration of levonorgestrel

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A 1987 study on mice determined oral glutathione to be nontoxic,27 and a 2017 toxicity study (also on mice) found that glutathione's LD (the amount of a substance needed to kill 50% of all test animals in one dose) was 5g/kg.6 An equivalent toxic dose for an 80kg human would be 32.5g, which is more than 32 times the highest amounts used in clinical studies

This concern typically stems from misunderstandings about how glutathione functions in the body

NADH then donates electrons in the mitochondrial electron transport chain, driving ATP synthesis

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