Nettle Root
Urtica dioica (root)
荨麻根
Pinyin: Qián Má Gēn
Plant Family
Urticaceae
Part Used
Root
Origin
Europe, Asia, North America; grows worldwide
Safety Level
Safe
Overview
Nettle root comes from the same plant as nettle leaf, but with different medicinal properties. While nettle leaf is used primarily for allergies and as a nutritive tonic, nettle root is specifically used for prostate health and urinary issues. It is one of the most widely researched herbs for benign prostatic hyperplasia (BPH).
Traditional Chinese Medicine Properties
Nature (四气)
cool
Flavors (五味)
bitter, astringent
Meridians (归经)
kidney, bladder
Health Benefits
Traditional Uses
- Enlarged prostate (BPH)
- Urinary tract problems
- Kidney stones
- Hair loss and hair health
- Prostate health support
- Difficult urination
Active Constituents
The key compounds responsible for this herb's therapeutic effects:
Usage & Dosage
How to Use
Capsule, tablet, tincture, decoction, tea.
Suggested Dosage
Standardized extract (1% phytosterols or 10:1): 300–600 mg daily; capsules: 500 mg 2–3x/day; tincture: 2–3 mL 2–3x/day; decoction: 1–2 tsp dried root per cup, simmer 10 min, 2–3x/day. For BPH: 600–1200 mg daily of standardized extract.
Quality & Storage
Harvest Season
Root is harvested in autumn (after first year) or early spring before new growth begins. Roots from mature plants (2–3 years) are most potent. Dig carefully to preserve the root system.
Quality Indicators
Dried root: brown to grayish-brown, cylindrical, fibrous, slightly sweet and salty taste. Standardized extracts: look for phytosterol content (usually 0.8–1.5% beta-sitosterol). Quality varies widely - choose standardized extracts from reputable brands for consistent BPH results.
Storage
Dried root: airtight container in cool dark place, 2–3 years. Capsules and extracts: follow product expiration. Protect from moisture.
Safety Information
Contraindications
Pregnancy and breastfeeding (avoid)Children (insufficient data)Prostate cancer (may mask symptoms - use only under medical supervision)Bleeding disorders (mild effect)Low blood pressure (may lower further - mild)Diabetes (may affect blood sugar - monitor)
Possible Side Effects
- Generally well-tolerated at recommended doses
- Mild digestive upset (nausea, upset stomach, diarrhea) - rare
- Allergic reaction (rare - stinging nettle allergy)
- Skin rash (rare)
- Erectile dysfunction or reduced libido (at very high doses - uncommon)
- Mild fluid retention in some people (uncommon)
Drug Interactions
- Blood pressure medications (may lower blood pressure - mild)
- Diabetes medications (may lower blood sugar - monitor)
- Blood thinners (mild anticoagulant effect)
- Diuretics (additive effect)
- Prostate medications (5-alpha-reductase inhibitors, alpha-blockers - additive effects)
- Moderate interaction potential
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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