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Glutathione

General Health · Evidence: Limited · Importance: Optional

The body’s primary intracellular antioxidant. Sold as an oral antioxidant/skin supplement.

Educational only — not medical advice. BodEvo summarizes research cautiously and labels estimates as estimates. Talk to a physician or registered dietitian before starting any supplement, diet, or training program.

What the evidence says

Evidence for oral glutathione meaningfully raising tissue glutathione or improving performance is limited and mixed, largely due to poor oral bioavailability.

Typical dose & timing

Dose: Products vary widely; oral absorption is a major limitation. Follow label guidance.

Timing: Per label; absorption is the bigger question than timing.

Role in a stack

Optional; precursors like NAC and adequate protein/cysteine intake may matter more than oral glutathione itself.

Redundancy check: Redundant with NAC and other antioxidant products. No need to stack several antioxidant supplements at once.

Cautions & safety

Oral glutathione is poorly absorbed intact; many marketing claims outpace the evidence. Be skeptical of strong "detox" or skin-whitening claims.

Generally considered safe short-term, but high-quality long-term data are limited. Educational only — not medical advice.

Best for

antioxidant interest

Use it in the app: open the Supplement Library and Stack Builder — free, local-first, no account required.