Educational reference only · Not medical advice · Always consult a qualified healthcare professional
Astragalus

Astragalus membranaceus

Astragalus

Fabaceae

Evidence: LimitedCaffeine Free ChinaVitality TraditionsImmune TraditionsStress
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Identity

Common Name
Astragalus
Scientific Name
Astragalus membranaceus
Botanical Family
Fabaceae
Native Region
China and Mongolia
Cultivation Regions
China, Mongolia, Korea
Plant Parts Used
Root
Synonyms
Huang Qi, Milk Vetch, Yellow Leader
Caffeine Level
Caffeine Free

A perennial member of the pea family with compound pinnate leaves of small oval leaflets, loose racemes of small pale yellow pea-like flowers, and a long fibrous taproot with a pale yellow interior used medicinally.

Historical Background

Astragalus (huang qi, 'yellow leader') has been one of the most important Qi-tonifying herbs of Traditional Chinese Medicine for over 2,000 years, prized for vitality, defense, and stamina. Its sliced root is simmered long into nourishing soups and teas, often with jujube, goji, and ginger, to support convalescence and seasonal resilience.

Earliest recorded uses: Recorded in the Shennong Ben Cao Jing (~2000 years ago) as a superior Qi tonic; a pillar of TCM.

Traditional preparations:

  • Root-slice decoction
  • Immune soup with jujube & goji
  • Longevity congee

Traditional Uses

These uses document historical traditions and do not imply proven effectiveness.

Traditional Chinese Medicine

Tonifies Qi, lifts Spleen, stabilizes the exterior; premier defense and vitality tonic.

Modern Herbalism

Adaptogen and immune tonic for resilience and fatigue.

Flavor & Aroma

SweetEarthyBean-likeMild

Aroma: Sweet, earthy, bean-like, mild

Tea Information

Suitable for Tea
Yes
Preparation Methods
Decoction
Steeping Temperature
200°F (93°C)
Steeping Time
20-40 minutes simmer (decoction)
Recommended Vessel
Saucepan (long decoction)
Blends Well With
Goji Berry, Jujube, Ginger, Reishi, Green Tea
200°F (93°C) 20-40 minutes simmer (decoction)

Safety & Cautions

Contraindications
Avoid in autoimmune disease and active infections without supervision; discontinue before surgery; caution with immunosuppressants and antidiabetic drugs.
Drug Interactions
May modulate immunosuppressants and affect blood sugar and blood pressure; may enhance bleeding with anticoagulants; consult a clinician.
Pregnancy
Generally regarded as safe in food/decoction amounts.
Children
Mild decoctions acceptable in small amounts; widely used as a food in soups.
Allergies
Legume/Fabaceae allergy possible; rare rash.
Known Adverse Effects
Generally well tolerated; mild GI effects; rare allergic reactions; may enhance immune responses.

Research Summary

Evidence Level: Limited

Astragalus is a pillar of TCM as a Qi and immune tonic. Clinical evidence is limited; some trials (often combined with other herbs) suggest possible immune and fatigue benefits, but it is not a treatment for cancer, infection, or any disease, and interacts with immune-suppressive therapy.

Evidence levels reflect the currently available scientific literature and may change as new research emerges. Where evidence is limited or conflicting, this is stated plainly.

References & Sources

References & Sources

  1. NCCIH · Astragalus (2023)
  2. MSKCC · Astragalus information (2022)

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Soothing Brews

An educational encyclopedia preserving the history, traditions, and modern evidence behind herbs used in teas and infusions. Inspired by antique botanical manuscripts.

Steeped in tradition, grounded in honesty.

Please Note

This is an educational reference, not a medical resource. Historical use does not imply effectiveness. Natural does not always mean safe. Consult a qualified healthcare professional before using herbs, especially if pregnant, nursing, or taking medications.

© 2026 Soothing Brews · For educational purposes only.

Preferred sources: NIH ODS · NCCIH · MSK Herbs · PubMed · WHO · EMA · German Commission E · Cochrane