Ganoderma applanatum

BotanicalMedicinal mushroom

What is it

Ganoderma applanatum, commonly called artist's conk, is a hard, woody polypore mushroom found growing on hardwood trees worldwide. It is related to the better-known reishi (Ganoderma lucidum) and is used in traditional Chinese medicine.

Evidence for 1 use

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Immune modulation (traditional / preclinical)

Mixed Evidence

Beta-glucans and triterpenoids show immunomodulatory activity in laboratory studies. Species-specific human clinical trials are not available.

How it works

Like other Ganoderma species, it contains beta-glucan polysaccharides, triterpenoids (ganoderic and related acids), and sterols. Beta-glucans bind dectin-1 and complement receptors on immune cells, producing immunomodulatory effects in laboratory and animal models. Triterpenoids have shown anti-inflammatory and modest cytotoxic activity in cell studies. Human clinical data specifically on G. applanatum is sparse. Most published Ganoderma research uses G. lucidum, and benefits cannot be directly assumed to transfer across species.

Dosage

There is no established evidence-based dose. Traditional decoctions use 3–9 g of dried fruiting body. DSLD label data does not provide a usable median.

When and how to take it

Traditional decoctions are taken with or between meals. No evidence-based timing standard.

1 commercial form

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Hot water or dual extract of fruiting body

Typical preparation for medicinal mushrooms.

Polysaccharides require hot water extraction; triterpenoids require alcohol.

Safety

Generally well tolerated in traditional use at decoction doses. As with other Ganoderma species, possible mild GI upset, dry mouth, or dizziness reported with higher doses. The woody fruiting body is largely indigestible and is typically extracted rather than consumed whole.

Who should be cautious

Avoid in pregnancy and breastfeeding due to absent data. Caution before surgery and in people on warfarin or other blood thinners. Patients on immunosuppression should consult their clinician.

Interactions

Class effect concern with anticoagulants and antiplatelets (mild antiplatelet activity reported for related Ganoderma species). May interact with immunosuppressants in theory.

Frequently asked questions

Is artist's conk the same as reishi?⌄

They are related species in the same genus but are not identical. Most reishi clinical research is on Ganoderma lucidum, not G. applanatum.

Can I eat artist's conk?⌄

The fruiting body is woody and not eaten whole. It is consumed as decoctions or extracts.

References

Ganoderma applanatum on Wikidata — Wikidata link

Ganoderma applanatum on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Ganoderma applanatum (PubMed search) — PubMed link

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Evidence-based·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.