Reishi Mushroom
Ganoderma lucidum
灵芝
Pinyin: Líng Zhī
Plant Family
Ganodermataceae (polypore fungus)
Part Used
Fruiting body, mycelium, spores
Origin
China, Japan, Korea, North America, Europe - grows on dead or dying hardwood trees
Safety Level
Safe
Overview
Reishi (Lingzhi) is a shelf fungus that grows on the trunks of dead or dying hardwood trees, particularly maple, oak, and plum. It has a distinctive glossy, reddish-brown, kidney-shaped cap with a woody texture. In Traditional Chinese Medicine, Reishi is considered the most superior of all medicinal mushrooms and has been revered for over 2,000 years as the "Mushroom of Immortality." Wild Reishi is rare and highly prized; most Reishi today is cultivated on logs or sawdust.
Traditional Chinese Medicine Properties
Nature (四气)
neutral
Flavors (五味)
sweet, bitter
Meridians (归经)
heart, lung, liver, kidney
Health Benefits
Traditional Uses
- Tonifies qi and nourishes the heart
- Calms the spirit (shen) and treats insomnia
- Strengthens the body's natural defenses
- Extends lifespan and promotes longevity
- Cough and asthma (tonifies lung qi)
- Liver protection and detoxification
- General tonic for weakness and fatigue
Active Constituents
The key compounds responsible for this herb's therapeutic effects:
Usage & Dosage
How to Use
Available as dried slices/cubes, powder, capsules, liquid extract, or tea. Dual-extracted (hot water + alcohol) extracts provide the full spectrum of active compounds. Can be simmered into a broth or decoction.
Suggested Dosage
Tea/decoction: 3-9g dried mushroom, simmer 30-60 min. Capsules/Extract: 1000-3000mg daily of dual extract. Spore powder (cracked cell wall): 1-2g daily.
Quality & Storage
Harvest Season
Wild Reishi: Summer to early autumn. Cultivated Reishi is harvested year-round under controlled conditions. Duanwood Reishi takes 5-8 months to mature on logs.
Quality Indicators
Duanwood (log-grown) Reishi is superior to grain-grown. Look for deep red, glossy caps with white undersides. Dual extracts should list both beta-glucan and triterpene content. Cracked-cell-wall spore powder is the most potent form. Reishi should be bitter - no bitterness = low triterpene content.
Storage
Store dried Reishi in airtight container in cool, dry place. Can be stored for 2-3 years. Extracts and spore powder should be kept sealed and protected from heat.
Safety Information
Contraindications
Autoimmune diseases (may stimulate immune function)Organ transplant recipients (may interact with immunosuppressants)Bleeding disorders or upcoming surgery (mild blood-thinning effect)Severe liver or kidney diseaseChildren under 12 (insufficient data)Pregnancy and breastfeeding
Possible Side Effects
- Dry mouth, throat, or nasal passages (with long-term use)
- Mild digestive upset (nausea, diarrhea) - rare
- Headache
- Skin rash (rare)
- "Herxheimer" or detox reaction in sensitive individuals
- Generally very well-tolerated
Drug Interactions
- Anticoagulants / blood thinners (warfarin, aspirin)
- Immunosuppressants (cyclosporine, etc.)
- Antidiabetic medications (may lower blood sugar)
- Blood pressure medications
- Chemotherapy drugs (may interact - consult oncologist)
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.
Related Herbs
Korean Red Ginseng
Panax ginseng
Korean Red Ginseng is the steamed and dried root of 6-year-old Panax ginseng plants, cultivated primarily in South Korea. The steaming process changes the color from white/yellow to reddish-brown and transforms the ginsenoside profile, creating what is considered the most potent form of ginseng. It is one of the most revered herbs in Traditional Chinese Medicine, known as the "King of Herbs" for its wide-ranging health benefits.
Ashwagandha
Withania somnifera
Ashwagandha is a small shrub with yellow-green flowers and red berries, native to the Indian subcontinent. It is one of the most important herbs in Ayurvedic medicine, where it has been used for over 3,000 years as a rasayana (rejuvenative) and adaptogen. The name "ashwagandha" means "smell of horse" in Sanskrit, referring to both its strong odor and its reputation for imparting the strength and vitality of a horse.
Rhodiola Rosea
Rhodiola rosea
Rhodiola rosea is a perennial flowering plant that grows in cold, mountainous regions of Europe and Asia. It has succulent leaves and yellow flowers with a rose-like fragrance. Rhodiola has been used for centuries in traditional medicine in Russia, Scandinavia, and Tibet to cope with the cold, high altitude, and physical stress. It was a closely guarded secret of Siberian folk medicine for generations.
Astragalus
Astragalus membranaceus
Astragalus is a perennial legume with yellow flowers that grows in the dry, sandy regions of northern China and Mongolia. Its thick, fibrous roots have a sweet taste and are one of the most important qi-tonifying herbs in Traditional Chinese Medicine. Astragalus has been used for over 2,000 years to strengthen the body's "wei qi" (defensive qi) and improve overall vitality. It is considered a "superior" herb in the Shennong Bencao Jing - safe for long-term use.