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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

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Archived from the original on 26 April 2015

But even though its made in the liver, glutathione can be found in every cell of your body as well as some extracellular areas, like the lining of the lung [2]

Individual variation in response rates reflects genetic factors, the underlying cause of hair loss, and baseline follicle health

[2] [5] High doses of acetaminophen are known to deplete endogenous glutathione stores, particularly in the liver, which may increase the risk of toxicity