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This low absorption rate occurs because NAC undergoes extensive first-pass metabolism

Specifically, levels of LPS, intestinal fatty acid-binding protein (I-FABP), zonulin, and D-lactate were significantly higher in patients with newly diagnosed GD compared to healthy controls

If you are wondering whether it is safe to continue glutathione in warmer seasons, read our post on taking glutathione in summer

SS-31 is sold strictly for laboratory and research purposes and is not approved by the FDA or other regulators for human use

Exposure to heavy metals such as mercury, cadmium, lead, or arsenic can also lead to glutathione depletion