Shiitake Mushroom
Lentinus edodes
香菇
Pinyin: Xiāng Gū
Plant Family
Omphalotaceae (mushroom)
Part Used
Fruiting body, mycelium
Origin
China, Japan, Korea, Southeast Asia
Safety Level
Safe
Overview
Shiitake is the second most commonly cultivated edible mushroom in the world. It has been used as both food and medicine in East Asia for over 1,000 years. The Japanese have extensively studied shiitake for its health benefits. Lentinan, a beta-glucan from shiitake, is used as an intravenous cancer drug in Japan and China.
Traditional Chinese Medicine Properties
Nature (四气)
neutral
Flavors (五味)
sweet
Meridians (归经)
spleen, stomach
Health Benefits
Traditional Uses
- Tonifies qi and strengthens the body
- Boosts immune system
- Improves energy and reduces fatigue
- Lowers cholesterol and blood lipids
- Supports cardiovascular health
- Used in soups and tonics for general health
- Supports healthy aging
- Anti-tumor (in modern TCM)
Active Constituents
The key compounds responsible for this herb's therapeutic effects:
Usage & Dosage
How to Use
Used as food (cooked mushroom), dried mushroom, powder, capsules, tablets, and as an extract (lentinan). An incredibly versatile mushroom - both delicious and medicinal. Dried shiitake is a staple in Asian cooking.
Suggested Dosage
As food: 50-100g of fresh mushroom, or 10-15g dried, several times per week. Supplement: 2000-3000mg of powder or 500-1000mg of standardized extract daily.
Quality & Storage
Harvest Season
Year-round under cultivation. Wild shiitake grows on hardwood logs in autumn. Commercial cultivation uses both logs (premium) and sawdust substrate (more common).
Quality Indicators
Dried shiitake: thick, fleshy caps with deep brown color and white cracks (flower shiitake / 花菇 is premium). Umami-rich flavor. Log-grown is superior to sawdust-grown. Donko (thick cap, closed veil) is highest grade.
Storage
Dried shiitake: airtight container, cool dark place, up to 1 year. Reconstitute before use (soak in warm water 20-30 min). Fresh shiitake: refrigerate in paper bag for up to 1 week.
Safety Information
Contraindications
Generally very safe as foodRaw shiitake: may cause "shiitake dermatitis" (flagellate rash) in sensitive individuals - always cook shiitake!Autoimmune conditions (may stimulate immune function - large doses)Organ transplant recipientsBleeding disorders or upcoming surgery (mild effect)Mushroom allergy
Possible Side Effects
- Cooked shiitake: very safe for most people
- Raw shiitake: dermatitis (linear streaks/rash) - rare but documented
- Digestive upset (in large amounts)
- Allergic reaction (rare)
- Bloating or gas (with large consumption)
- Very high extract doses may cause mild diarrhea
Drug Interactions
- Anticoagulants / blood thinners (mild effect)
- Immunosuppressants (may reduce effectiveness)
- Diabetes medications (may lower blood sugar - mild)
- Generally very low interaction risk at food doses
- Higher risk with concentrated extracts and lentinan injections
Note: Always consult with a qualified healthcare practitioner before starting any herbal supplement, especially if you are pregnant, nursing, have medical conditions, or take medications.
References & Research
Information on this page is based on traditional herbal knowledge and modern scientific research. For a comprehensive list of references, please refer to our full citations page.
ℹ️ Disclaimer
This information is for educational purposes only and is not intended to diagnose, treat, cure, or prevent any disease. The FDA has not evaluated these statements. Always consult a qualified healthcare provider before using herbal supplements.
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