# Hericium erinaceus 'Yamabushitake'

**Canonical URL:** https://ingredients.hermeticasuperfoods.com/ingredients/hericium-erinaceus-yamabushitake
**Data Source:** Hermetica Superfoods Ingredient Encyclopedia
**Updated:** 2026-03-24
**Evidence Score:** 2 / 10
**Category:** Mushroom/Fungi
**Also Known As:** Hericium erinaceus, Lion's Mane, Bearded Tooth Mushroom, Pom Pom Blanc, Monkey Head Mushroom, Hou Tou Gu, Bearded Hedgehog Mushroom, White Beard Mushroom

## Overview

Hericium erinaceus 'Yamabushitake' is a medicinal mushroom whose primary bioactive compounds, hericenones and erinacines, stimulate nerve growth factor (NGF) synthesis in the brain. This NGF upregulation supports neuronal regeneration and synaptic plasticity, underpinning its cognitive and [neuroprotective effect](/ingredients/condition/cognitive)s.

## Health Benefits

• [Cognitive enhancement](/ingredients/condition/cognitive): Double-blind placebo-controlled trial (n=30) showed marked improvement in mild cognitive impairment on the Hasegawa Dementia Scale (moderate evidence)
• Gastroprotection: Animal studies demonstrated significant reduction in ethanol-induced and pylorus-ligated gastric ulcers at 200 mg/kg via [anti-inflammatory](/ingredients/condition/inflammation) mechanisms (preliminary evidence)
• Neuroprotection: Reduced brain infarction by 22-44% in animal stroke models at 50-300 mg/kg doses, mediated by cytokine reduction (preliminary evidence)
• Nerve regeneration: Stimulates nerve growth factor (NGF) synthesis and neurite outgrowth through erinacine compounds (preliminary evidence)
• [Antioxidant activity](/ingredients/condition/antioxidant): Most potent in vitro inhibitor of LDL oxidation and HMG Co-A reductase among studied mushrooms (preliminary evidence)

## Mechanism of Action

Erinacines (diterpenes found in the mycelium) cross the blood-brain barrier and directly stimulate NGF mRNA expression in astrocytes and hippocampal neurons, while [hericenone](/ingredients/condition/cognitive)s (aromatic compounds in the fruiting body) promote NGF secretion via PKA/CREB signaling pathways. Polysaccharide fractions, particularly beta-1,3/1,6-glucans, modulate gut mucosal [immunity](/ingredients/condition/immune-support) and inhibit H. pylori adhesion, contributing to gastroprotection. Additionally, erinacine A has been shown to upregulate BDNF and suppress [pro-inflammatory cytokine](/ingredients/condition/inflammation)s including TNF-α and IL-1β through NF-κB pathway inhibition.

## Clinical Summary

A double-blind, placebo-controlled trial (n=30, 16 weeks, 1 g/day fruiting body powder taken three times daily) demonstrated statistically significant improvements in Hasegawa Dementia Scale scores in adults with mild [cognitive](/ingredients/condition/cognitive) impairment, with scores declining after cessation of supplementation, suggesting effect dependency. Animal studies using ethanol-induced and pylorus-ligated models showed significant reductions in gastric ulcer index scores, attributed to polysaccharide-mediated mucosal protection and [antioxidant activity](/ingredients/condition/antioxidant). Evidence for cognitive benefits in otherwise healthy adults remains limited to preclinical models and small pilots; the mild cognitive impairment trial represents the strongest human evidence currently available. Larger, longer-duration RCTs are needed before definitive clinical recommendations can be made.

## Nutritional Profile

Hericium erinaceus (Lion's Mane / Yamabushitake) contains a well-characterized nutritional and bioactive compound profile. Macronutrients (per 100g dry weight): protein 22-35g (containing all essential amino acids; glutamic acid and aspartic acid predominant), total carbohydrates 40-60g (including polysaccharides 35-50g), dietary fiber 15-25g (predominantly beta-glucans), fat 2-5g (linoleic acid as primary fatty acid ~70-80% of fat fraction). Key bioactive compounds: [Hericenone](/ingredients/condition/cognitive)s (C-G; aromatic compounds found in fruiting body at approximately 0.03-0.5mg/g dry weight) — lipid-soluble, good oral bioavailability, cross blood-brain barrier; Erinacines (A-I; cyathane diterpenoids found primarily in mycelium at 0.1-1.2mg/g dry weight) — notably erinacine A is the most studied NGF-stimulating compound; Beta-1,3/1,6-glucans (approximately 15-30% of dry weight) — [immunomodulatory](/ingredients/condition/immune-support) polysaccharides with moderate bioavailability, enhanced by hot water extraction; Hericerins and isoindolinones (minor aromatic compounds, trace quantities <0.1mg/g). Micronutrients: potassium ~400-500mg/100g dry, phosphorus ~800-1000mg/100g dry, zinc ~2-3mg/100g dry, selenium ~0.2-0.5mcg/g dry, ergosterol (provitamin D2) ~1-3mg/g dry (converted to vitamin D2 upon UV exposure). Vitamins: B1 (thiamine) ~0.2mg/100g, B2 (riboflavin) ~0.4mg/100g, B3 (niacin) ~6-8mg/100g. Bioavailability notes: Hot water extraction significantly improves beta-glucan and polysaccharide bioavailability; erinacines are better extracted via ethanol/methanol; dual-extraction products preserve both fractions. Fruiting body vs. mycelium matter significantly — erinacines predominantly in mycelium; hericenones in fruiting body. Myceliated grain products may dilute active compound concentrations substantially depending on extraction ratio.

## Dosage & Preparation

Clinical trial dosage: 250 mg tablets (96% dry powder) taken three times daily (750 mg total) for [cognitive](/ingredients/condition/cognitive) support. Animal model dosages: 50-300 mg/kg for neuroprotection, 200 mg/kg for gastroprotection. Standardization metrics for commercial extracts not specified in available research. Consult a healthcare provider before starting any new supplement.

## Safety & Drug Interactions

Yamabushitake is generally well tolerated; the clinical trial (n=30) reported no serious adverse events, though rare cases of skin rash and contact dermatitis have been documented, likely from beta-glucan immune activation. Individuals with mushroom allergies or autoimmune conditions (e.g., multiple sclerosis, lupus, rheumatoid arthritis) should exercise caution, as [immunomodulatory](/ingredients/condition/immune-support) beta-glucans may theoretically exacerbate immune activity. No well-documented drug interactions exist, but additive effects are plausible with chemotherapy agents, immunosuppressants, and anticoagulants due to platelet aggregation inhibition observed in vitro. Safety data in pregnant or breastfeeding women are absent, so use is not recommended during these periods.

## Scientific Research

A double-blind, placebo-controlled trial with 30 Japanese adults aged 50-80 with mild cognitive impairment demonstrated significant cognitive improvements after 16 weeks of 750mg daily supplementation, though effects diminished within 4 weeks of cessation. Animal studies showed dose-dependent [neuroprotective effect](/ingredients/condition/cognitive)s in stroke models and gastroprotective properties. Note: The research dossier does not provide specific PubMed PMIDs for these trials.

## Historical & Cultural Context

Hericium erinaceus has been used in Traditional Chinese Medicine for centuries, recognized for its [immunomodulatory](/ingredients/condition/immune-support) properties from polysaccharides. In TCM, it is valued as an [adaptogen](/ingredients/condition/stress) for reducing depression, anxiety, [insomnia](/ingredients/condition/sleep), and concentration deficits, particularly in elderly individuals, students, and professionals under stress.

## Synergistic Combinations

Bacopa monnieri, Ginkgo biloba, Phosphatidylserine, Omega-3 fatty acids, B-complex vitamins

## Frequently Asked Questions

### How much Lion's Mane mushroom should I take daily for cognitive benefits?

The primary double-blind RCT supporting cognitive benefits used 1 gram of Yamabushitake fruiting body powder three times daily (3 g/day total) over 16 weeks. Many commercial extracts standardized to hericenones and erinacines are dosed at 500–1000 mg once or twice daily, but direct dose-equivalence comparisons with whole powder studies have not been established.

### What is the difference between Lion's Mane mycelium and fruiting body?

The fruiting body contains primarily hericenones, which stimulate NGF secretion, while the mycelium is the dominant source of erinacines, which directly cross the blood-brain barrier to induce NGF synthesis in astrocytes. The clinical cognitive trial used fruiting body powder, but many supplements use mycelium-on-grain preparations that may contain significant starch filler and lower erinacine concentrations. Choosing an extract verified for both compound classes by third-party testing is advisable.

### How long does it take for Yamabushitake to improve memory?

In the 16-week double-blind trial, statistically significant improvements on the Hasegawa Dementia Scale were observed compared to placebo, though the exact onset week was not isolated in the published data. Importantly, cognitive scores declined within 4 weeks of stopping supplementation, suggesting benefits require continued use. Preclinical models show NGF upregulation within days, but translation of that timeline to measurable human cognition has not been established.

### Can Lion's Mane mushroom help with stomach ulcers?

Animal studies using ethanol-induced and pylorus-ligated gastric ulcer models found that Hericium erinaceus polysaccharides significantly reduced ulcer index scores, likely through enhanced mucus secretion, antioxidant enzyme activity (SOD and catalase upregulation), and suppression of pro-inflammatory mediators. Human clinical trials specifically targeting gastric ulcers have not been conducted, so current evidence is limited to animal models. The mushroom has also demonstrated in vitro inhibition of H. pylori adhesion to gastric epithelial cells, which is a promising but unconfirmed therapeutic pathway in humans.

### Is Lion's Mane mushroom safe to take with antidepressants or anxiety medications?

No formal drug interaction studies between Hericium erinaceus and antidepressants or anxiolytics have been published in humans. Preclinical data show erinacine A modulates serotonergic and dopaminergic pathways and reduces corticosterone-induced anxiety behaviors in mice, raising theoretical concerns about additive CNS effects when combined with SSRIs or benzodiazepines. Until human pharmacokinetic interaction data are available, anyone taking psychiatric medications should consult a physician before adding Yamabushitake supplementation.

### Is Yamabushitake safe for children and elderly individuals?

Yamabushitake has a long history of culinary use in Asia with excellent safety profiles across age groups, though clinical safety data specifically in pediatric populations remains limited. Elderly individuals may benefit from its neuroprotective properties, but those on blood thinners should consult a healthcare provider as Lion's Mane may have mild anticoagulant effects. Starting with lower doses is prudent in both populations until individual tolerance is established.

### What is the most bioavailable form of Yamabushitake — fruiting body extract versus whole mushroom powder?

Standardized fruiting body extracts typically offer superior bioavailability of active compounds like hericenones and erinacines compared to raw powder, as extraction concentrates the beneficial molecules. However, whole fruiting body supplements retain beta-glucans and other polysaccharides that may support immune function alongside cognitive benefits. The optimal choice depends on your primary health goal: cognitive enhancement favors extracts, while broad-spectrum wellness may favor whole mushroom preparations.

### Does Yamabushitake interact with anticoagulant or antiplatelet medications?

Preliminary evidence suggests Yamabushitake may have mild anticoagulant properties, raising theoretical concerns for patients taking warfarin, apixaban, or aspirin, though human clinical data is sparse. Individuals on blood-thinning medications should inform their healthcare provider before supplementing and may require monitoring of coagulation markers. The interaction risk appears low at typical culinary or supplemental doses, but caution is warranted in high-dose scenarios.

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*Source: Hermetica Superfoods Ingredient Encyclopedia — https://ingredients.hermeticasuperfoods.com*
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