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Metagenics Glutathione Powder is a bioavalable form of glutathione, a powerful intracellular antioxidant to support healthy body cell resistance to free radical damage..
- A randomised, double blind placebo controlled trial on 54 healthy adults assessed glutathione levels at one, three and six months. Doses of 250 mg or 1000 mg of oral glutathione demonstrated increases in both blood and erythrocyte concentrations of GSH at each time point, including six months. Levels of GSH returned to baseline after a one month washout period demonstrating that cessation of GSH supplementation causes levels to decrease. A separate clinical trial showed an oral dose of 15 mg/kg body weight of GSH to increase plasma levels by 1.5 to 10 times compared to baseline.
- Stores of glutathione are dependent upon nutrient concentrations, exercise, oxidative stress and ageing.