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A study by Johnston et al 24 indicated that vitamin C supplementation (500mg/day) maintains reduced glutathione concentrations in the blood and improves the overall antioxidant protection capacity of the blood

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Glutathione-S transferase activity in cultured research subjects hepatocytes [PMID: 3228864] Laboratory literature summary: Glutathione-S transferase activity in cultured research subjects hepatocytes

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Presented for research literature review only Baudouin-Cornu P et al

Effects of a combination of beta carotene and vitamin A on lung cancer and cardiovascular disease