Rehmannia (Rehmannia glutinosa)

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Rehmannia

地黄 (Dì Huáng) · Rehmannia glutinosa

A foundational TCM 'kidney tonic' herb. Used in the famous Liu Wei Di Huang Wan formula for aging, adrenal fatigue, hormonal balance, and bone health.

Evidence Score
7/10
Good Evidence
Safety
Safe for most adults

Good For

Key Benefits

May provide antioxidant protection

Traditionally associated with healthy aging and vitality

May support hormonal balance

Traditionally used for menstrual health and reproductive wellness

May help combat fatigue and increase stamina

Traditionally used to support physical endurance

How to Take

Typical dose: Follow product label. Typically 500-1500mg extract daily, taken in the morning
Forms: capsule, powder, tea/decoction
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

  • Generally well tolerated at recommended doses
  • Mild digestive upset possible in sensitive individuals

Do Not Use If

  • Known allergy to this plant or related species
  • Consult healthcare provider if pregnant or nursing

Drug Interactions

  • No major drug interactions documented at standard doses
  • Inform your doctor of all supplements you take

Traditional Use

In Traditional Chinese Medicine, 地黄 (Dì Huáng) has been used for centuries. It is traditionally classified as a qi-tonifying herb that strengthens vitality. It nourishes blood and supports the liver's role in regulating menstruation according to TCM theory. It is considered a longevity tonic — nourishing the fundamental essence (jing) and supporting the kidneys.

Modern Research

Moderate research exists for this herb, including some clinical trials and substantial preclinical data. While not as extensively studied as top-tier herbs, the evidence supports several traditional uses. More human trials would strengthen the evidence base.

View all studies on PubMed for Rehmannia glutinosa

Where to Buy

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