Glutathione in Our Diet and Its Role in the Body: From Disease Prevention to Anti-Aging.
Level 5 - mechanism / opinion, no new human data
Narrative review without systematic methodology
PubMed 42197099 · doi:10.3390/nu18101640
What was done
Narrative review synthesizing literature on the physiological roles of glutathione in redox homeostasis, detoxification, and immune function, and comparing strategies to maintain tissue levels via dietary sources, endogenous synthesis, and supplementation.
What was found
The abstract reports no quantitative metrics or statistical values. It qualitatively states that endogenous glutathione declines with age and notes that targeted precursor-based supplements (e.g., glycine, gamma-glutamylcysteine) and Nrf2-activating agents demonstrate stronger and more consistent increases in human glutathione levels than direct intake of preformed glutathione.
Why it matters
This review outlines pathways for maintaining cellular antioxidant defenses, highlighting that supplying metabolic precursors or activating synthesis pathways may be more effective than consuming preformed glutathione.
Limits
The abstract contains no quantitative data, effect sizes, or systematic review methodology. Specific comparative clinical outcomes, dosing regimens, safety profiles, and long-term human trial results are not reported.
Cited by
- supports Eating leafy greens and supplementing with N-acetylcysteine (NAC) can support glutathione production and detoxification.