Targeting Reduced Glutathione (GSH) to Promote Metabolic Health: Insights on the Role of Bioactive-Rich Foods and Fasting Protocols.
Level 5 - mechanism / opinion, no new human data
Narrative review synthesizing mechanistic biology and clinical literature without systematic review methodology
PubMed 42511748 · doi:10.3390/ijms27146400
What was done
This narrative review evaluated mechanistic and human clinical evidence examining how reduced glutathione relates to metabolic health and aging. It assessed how bioactive-rich foods and fasting protocols influence glutathione levels, redox homeostasis, and glutathione-dependent enzymatic pathways through Nrf2/ARE signaling.
What was found
The abstract reports no quantitative data or numerical effect sizes. It qualitatively reports that diminished glutathione levels occur across obesity, insulin resistance, type 2 diabetes, non-alcoholic fatty liver disease, and cardiovascular diseases. Bioactive-rich foods and fasting protocols stimulate glutathione and related enzyme activity, with fasting showing heterogeneous effects across different protocols and study populations.
Why it matters
Targeting glutathione homeostasis through diet and fasting represents a potential strategy to mitigate metabolic dysfunction and support healthy aging.
Limits
The abstract provides no study counts or sample sizes and reflects a narrative synthesis without systematic search criteria. Reported outcomes exhibit substantial heterogeneity across fasting protocols, and responses vary according to baseline oxidative stress as well as individual genetic, epigenetic, and lifestyle factors.
Cited by
- supports Eating leafy greens and supplementing with N-acetylcysteine (NAC) can support glutathione production and detoxification.