What kind of interaction is it?

Synergy: a documented combination effect that is stronger or more useful than either substance taken alone.

Is this interaction backed by published research?

Yes. NutriStack lists 1 citation row for the Ergothioneine + NAC pair, each linking to PubMed by PMID where available. Full sourcing methodology at https://nutristackapp.com/methodology/interactions.

Supplement × Supplement·a synergy·Emerging evidence

Ergothioneine + NAC

Q: Can I take Ergothioneine and NAC together?

Yes. The combination of Ergothioneine and NAC produces a measurable benefit. Both compounds support cellular thiol-based antioxidant defenses. Ergothioneine is a stable, transporter-accumulated antioxidant, while N-acetylcysteine replenishes glutathione; their distinct mechanisms can be complementary.

Q: How does this affect a NutriStack Stack Score?

+2 to your Stack Score per scored synergy row.

Synergy Emerging evidence

Both compounds support cellular thiol-based antioxidant defenses. Ergothioneine is a stable, transporter-accumulated antioxidant, while N-acetylcysteine replenishes glutathione; their distinct mechanisms can be complementary.

Supplement × Supplement

Open the interaction checker → Read the methodology

From the database

What the row says.

Every entry follows the same shape: what is happening, the mechanism, and the recommendation.

Substances

Ergothioneine and NAC

Pair type

Synergy

Evidence

Emerging

Source citations

Scope

Supplement × Supplement

Last verified

June 4, 2026

SynergyEmerging evidence

What is happening. Both compounds support cellular thiol-based antioxidant defenses. Ergothioneine is a stable, transporter-accumulated antioxidant, while N-acetylcysteine replenishes glutathione; their distinct mechanisms can be complementary.

Mechanism. Ergothioneine scavenges reactive oxygen species and is conserved in tissues via OCTN1; NAC provides cysteine for glutathione synthesis. The two operate through separate but reinforcing thiol antioxidant pathways.

Recommendation. Reasonable to combine for antioxidant support. No dose adjustment needed. Expect additive, not dramatic, effects and rely on data showing only modest, mostly preclinical benefit.

Stack Score

How it moves the number.

Effect on the composite score

If both Ergothioneine and NAC are in the same stack, this pair applies +2 to your Stack Score (per scored synergy row).

The full algorithm, the clamping rules, and four worked stacks are at /methodology/stack-score.

Sources

Sources, by evidence tier.

Every claim on this page is cited. PMIDs link straight to PubMed.

Reference material

1Halliwell B, Cheah IK, Tang RMY. Ergothioneine - a diet-derived antioxidant with therapeutic potential. FEBS Letters. 2018.Needs sourceNo link

Check your full routine

One pair was the worked example.

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Open the interaction checker → Browse the research index