Licorice Root (Glycyrrhiza glabra)

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Licorice Root

η”˜θ‰ (Gān Cǎo) Β· Glycyrrhiza glabra

The most commonly used herb in TCM formulas β€” appears in over 50% of classical prescriptions. Used for digestive health, respiratory support, and as a harmonizing agent.

Evidence Score
10/10
Strong Evidence
Safety
Use with caution

Good For

Key Benefits

May support healthy digestive function

Traditionally used to harmonize the stomach and intestines

May help the body adapt to stress

Traditionally used to calm the spirit and ease tension

May support immune system function

Traditionally used to strengthen defensive qi and resistance to illness

How to Take

Typical dose: Follow product label. Often taken as tea (3-5g dried herb steeped 10 min) or 500-1000mg extract with meals
Forms: capsule, powder, tea/decoction, tincture
Timing: Take with food unless otherwise directed. Allow 2-4 weeks for full effects with tonic herbs
Start with lower doses and increase gradually. Quality and standardization vary between brands.

Safety & Interactions

Possible Side Effects

  • Digestive discomfort at higher doses
  • May cause drowsiness or stimulation depending on the herb
  • Allergic reactions possible in sensitive individuals

Do Not Use If

  • Pregnancy and breastfeeding (insufficient safety data)
  • Children under 12 without professional guidance
  • Scheduled surgery (stop 2 weeks before)

Drug Interactions

  • May interact with prescription medications
  • May affect blood sugar or blood pressure medications
  • Consult pharmacist before combining with other supplements

Traditional Use

In Traditional Chinese Medicine, η”˜θ‰ (Gān Cǎo) has been used for centuries. TCM practitioners use it to reinforce the body's defensive energy (wei qi). It is traditionally used to calm the spirit (shen) and settle the heart-mind. It supports the spleen and stomach β€” the foundation of post-natal qi production in TCM theory.

Modern Research

This herb has extensive scientific backing with hundreds of published studies. Multiple clinical trials support its traditional uses, and active compounds have been well-characterized. It represents one of the more evidence-based options in the herbal pharmacopoeia.

View all studies on PubMed for Glycyrrhiza glabra β†’

Where to Buy

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