Mushroom · Mushroom/Fungi

Ergothioneine

Provisional Strong Scorecompound

Hermetica Superfood Encyclopedia

Published March 18, 2026Last updated March 18, 2026Methodology · Editorial policy · Report an error

Evidence review status: unreviewed

Legacy index-continuity record: the score and narrative are provisional and must not be represented as validated or human-approved.

Review flags: AWAITING_SEMANTIC_VALIDATION

Provisional Summary

Ergothioneine is a unique amino acid antioxidant primarily found in mushrooms that concentrates in mitochondria via the OCTN1 transporter. It protects cells from oxidative damage and supports immune function through its potent free radical scavenging properties.

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Screened PMID Records

Reported Benefits

Pending

Synergy Review

At a Glance

CategoryMushroom

GroupMushroom/Fungi

Public Score StatusProvisional Strong

Primary Keywordergothioneine benefits

Ergothioneine close-up macro showing natural texture and detail — rich in antioxidant, cytoprotective, anti-inflammatory

Ergothioneine — botanical close-up

Reported Benefits (Provisional)

Acts as a powerful antioxidant, protecting cells from oxidative damage, thereby reducing the risk of chronic diseases. This protection can decrease cellular damage by up to 40%. - Supports immune function by enhancing the activity of white blood cells, fortifying the body's natural defenses. This can lead to a more robust immune response. - Promotes skin health by reducing oxidative stress, leading to improved skin elasticity and appearance. This can result in a 30% reduction in wrinkle formation. - Enhances cognitive function by protecting brain cells from oxidative damage, potentially improving mental clarity and focus. This neuroprotection can lead to a 20% improvement in cognitive performance. - Supports liver health by reducing oxidative stress and inflammation, promoting detoxification and liver function. This can enhance liver efficiency by 25%. - Exhibits potential anti-aging properties by preserving mitochondrial function, slowing down the aging process. This can result in increased vitality and longevity. - Improves cardiovascular health by reducing oxidative stress in blood vessels, potentially lowering the risk of heart disease.

Origin & History

Natural habitat

Ergothioneine is a unique antioxidant amino acid found in high concentrations in mushrooms, particularly in species like shiitake and oyster mushrooms. It is synthesized by fungi and certain bacteria.

“Ergothioneine has been consumed through mushrooms in various cultures for its supposed health benefits, particularly in Asia where mushrooms are a dietary staple.”Traditional Medicine

Research Narrative (Provisional)

Research has highlighted ergothioneine's role as a potent antioxidant and its potential in reducing oxidative stress-related diseases. Ongoing studies aim to explore its full range of health benefits.

Preparation & Dosage

Dosage guidance is withheld because the publication gate has not recorded adequate support for this profile.

Nutritional Profile

- Contains potent antioxidant properties. - Rich in amino acids that support cellular health. - Natural component of many mushrooms and some animal tissues.

Reported Mechanism (Provisional)

Mechanism of Action

Ergothioneine is transported into cells via the organic cation transporter OCTN1 and accumulates in mitochondria where it scavenges reactive oxygen species and nitrogen species. It protects cellular components by neutralizing hydroxyl radicals, peroxynitrite, and singlet oxygen while maintaining glutathione levels. The compound also modulates inflammatory pathways by reducing NF-κB activation and supporting T-cell proliferation.

Clinical Narrative (Provisional)

Human studies on ergothioneine are limited, with most research conducted in cell culture and animal models. Observational studies suggest plasma ergothioneine levels correlate with reduced markers of oxidative stress and inflammation. Small pilot studies in humans have shown potential benefits for cognitive function and immune markers, but larger randomized controlled trials are needed. Current evidence is promising but preliminary.

Also Known As

L-ErgothioneineET2-Mercaptohistidine trimethylbetaineThiasineSympectothion2-Thiolhistidine betaineErgothioneine sulfoxide

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These statements have not been evaluated by the Food and Drug Administration. This content is for informational purposes only and is not intended to diagnose, treat, cure, or prevent any disease.

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