VitMode

Grifola sordulenta

A Patagonian 'sister' species to Grifola gargal, growing on koihue and prized locally for its culinary qualities — but, unlike gargal, with practically no research in humans or animals at all.

AKdr Anna KowalczykReviewed by Michał NowakUpdated: July 15, 2026
Research hypothesis
3.3

Number of studies

2

Safety

Moderate

Time to effects

Not applicable — no studies of any kind in animals or humans

Who it's for

Local mushroom foragers in Patagonia, only under expert supervisionResearchers in fungal biotechnology and fermentation
Table of contents

TL;DR

A Patagonian 'sister' species to Grifola gargal, growing on koihue and prized locally for its culinary qualities — but, unlike gargal, with practically no research in humans or animals at all.

  • Extracts from cultivated mycelium show antioxidant activity in in vitro tests — a purely laboratory result
  • Locally prized as a tasty edible mushroom in Patagonian cuisine
Latin nameGrifola sordulenta
FamilyGrifolaceae
Active substancesUnidentified compounds with antioxidant activity in methanol mycelial extracts
FormFresh/dried fruiting bodies consumed locally as food; no extracts studied in humans or animals
Evidence levelHypothesis — in vitro only, zero animal or human studies
InteractionsNo studies of any kind
StatusNo supplement market; only local foraging in Patagonia

Understand

Overview

Grifola sordulenta is a species from the same genus as maitake, closely related to Grifola gargal, occurring in the same Patagonian forests. It grows almost exclusively on koihue wood (Nothofagus dombeyi). Like G. gargal, it's locally foraged as a wild edible mushroom.

Unlike G. gargal, for which at least one very small human pilot study has been published, no clinical study or even animal study can be found in international databases for Grifola sordulenta — only in vitro test results on cultivated mycelium extracts are available.

Who can this realistically help? Honestly: no one, as a source of health benefits. Unlike Grifola gargal, not a single study in animals or humans has been conducted for Grifola sordulenta. The only real 'target group' is local mushroom foragers in Patagonia, who, under the supervision of an experienced expert, can eat this species as a tasty edible mushroom — not as a supplement or health remedy.

Where it's found

Grifola sordulenta occurs in the same Andean-Patagonian forests as G. gargal, growing almost exclusively on koihue wood (Nothofagus dombeyi).

Mechanism of action

No specific mechanism of biological action has been established. The only available data concern the antioxidant activity of methanol extracts from mycelium grown in submerged culture — no specific compound responsible for this effect has been identified.

Evidence: limited — based on 2 studies in this database.

Benefits

Extracts from cultivated mycelium show antioxidant activity in in vitro tests — a purely laboratory result
Locally prized as a tasty edible mushroom in Patagonian cuisine

Common myths

MythSince it grows alongside Grifola gargal and belongs to the same genus, it must have identical, even preliminarily confirmed effects.

FactNo study involving humans or animals has yet been published for G. sordulenta.

Practice

Frequently asked questions

No. Only preliminary laboratory results are available. No studies have been conducted in animals or humans.

Dosage & timing

Typical dose

Not established — no studies have been conducted involving humans or animals

Form

Fresh or dried fruiting bodies consumed locally as food

This is one of those rare cases where the honest answer is: no scientific studies in humans are available.

Best times to take it

  • Not applicable

Safety

Side effects & contraindications

Possible side effects

No specific adverse effects described in the scientific literature

Contraindications

People with a mushroom allergy

No certain identification without mycological experience

No safety data in pregnancy

Interactions

No studies at all on drug interactions

Is it worth taking?

Who it's for

  • Local mushroom foragers in Patagonia, only under expert supervision
  • Researchers in fungal biotechnology and fermentation

Not for

  • People with a mushroom allergy
  • No certain identification without mycological experience
  • No safety data in pregnancy

Evidence

Worth knowing

Grows almost exclusively on koihue wood (Nothofagus dombeyi).

No mention of clinical studies of this species exists in international databases.

Studies

Submerged Culture of Grifola gargal and G. sordulenta from Argentina as a Source of Mycelia with Antioxidant Activity

Research hypothesis

Postemsky PD, Curvetto NR · International Journal of Medicinal Mushrooms · 2015

Methanol extracts from mycelium grown in submerged culture showed radical-scavenging ability in vitro — the only available data on this species' biological activity.

View study

Solid-state fermentation of cereal grains and sunflower seed hulls by Grifola gargal and Grifola sordulenta

Research hypothesis

Postemsky PD, Curvetto NR · International Biodeterioration & Biodegradation · 2015

A biotechnological study on cultivation using cheap agricultural substrates for producing mycelial biomass and antioxidant compounds.

View study

Sources & bibliography

Citations are illustrative for this demo version and require full bibliographic verification by the editorial team before production publication.

Compare with similar entries

About the authors of this entry

AK

Author

dr Anna Kowalczyk

Editor-in-Chief, Molecular Biology

Anna oversees the editorial process and scientific review of every publication in the knowledge base. She previously researched autophagy and mitochondrial biology.

50 publications on this site

MN

Medical review

Michał Nowak

Clinical Dietitian

Michał specializes in metabolic nutrition, intermittent fasting and sports supplementation.

61 publications on this site

Published: June 12, 2025Updated: July 15, 2026

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Comments (2)

  • KW

    Kasia W. 2 weeks ago

    Very clearly explained, especially the interactions section — I hadn't seen it laid out this well anywhere else.

  • MT

    Marek T. a month ago

    Are you planning to update this with the newest study from this year? I saw an interesting meta-analysis.