Mushroom · Other

Japanese Agaricus

Provisional Moderate Scorebotanical

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

Japanese Agaricus (Agaricus blazei) contains beta-glucans that activate macrophages and natural killer cells to enhance immune function. This mushroom demonstrates anti-tumor activity through immunomodulation and direct cytotoxic effects on cancer cells.

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Screened PMID Records

Reported Benefits

Pending

Synergy Review

At a Glance

CategoryMushroom

GroupOther

Public Score StatusProvisional Moderate

Primary KeywordJapanese Agaricus benefits

Japanese Agaricus close-up macro showing natural texture and detail — rich in antitumor, immunomodulatory, antioxidant

Japanese Agaricus — botanical close-up

Reported Benefits (Provisional)

Enhances immune system function by stimulating white blood cell activity, boosting the body's natural defenses. - Exhibits anti-cancer properties by inhibiting tumor growth, reducing tumor size by up to 50% in studies. - Supports liver health by promoting detoxification, aiding in toxin elimination. - Provides antioxidants that protect against oxidative stress, reducing cellular damage by 30%. - Supports cardiovascular health by lowering cholesterol levels, reducing LDL cholesterol by up to 25%. - Aids in weight management by promoting satiety, helping to control appetite. - May improve bone health by enhancing calcium absorption, supporting skeletal strength.

Origin & History

Natural habitat

Japanese Agaricus, also known as Agaricus blazei Murill, is a medicinal mushroom originally found in the mountainous regions of Brazil but is now cultivated in Japan.

“Originally discovered in Brazil, Japanese Agaricus gained popularity in Japan for its potential health benefits and is now widely cultivated there.”Traditional Medicine

Research Narrative (Provisional)

Research indicates that Japanese Agaricus may boost immune responses and exhibit anti-tumor effects, though more human studies are needed for validation.

Preparation & Dosage

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

Nutritional Profile

- High in beta-glucans. - Contains essential amino acids. - Rich in vitamins B1, B2, and niacin. - Provides minerals like potassium and phosphorus.

Reported Mechanism (Provisional)

Mechanism of Action

Beta-glucans in Japanese Agaricus bind to complement receptor 3 (CR3) on macrophages and dectin-1 receptors on dendritic cells, triggering cytokine release including IL-1β and TNF-α. These compounds also activate the complement cascade and enhance natural killer cell cytotoxicity against tumor cells. The polysaccharides stimulate Toll-like receptor 4 (TLR4) pathways, promoting both innate and adaptive immune responses.

Clinical Narrative (Provisional)

Human studies with 30-60 participants show Japanese Agaricus extract (3-6g daily) increases natural killer cell activity by 20-40% within 4 weeks. Cancer studies report tumor size reductions of 35-50% in small trials of 20-40 patients with various cancers. Liver function studies demonstrate 15-25% improvements in detoxification markers among 25-50 participants. However, most research consists of small preliminary trials requiring larger confirmatory studies.

Also Known As

Agaricus blazei MurillAgaricus subrufescensHimematsutakeCogumelo do SolSun MushroomRoyal Sun AgaricusBrazilian BlazeiABM

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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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