Oil of Oregano (Origanum vulgare)

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Oil of Oregano

牛至 (Niú Zhì) · Origanum vulgare

Concentrated oil containing carvacrol and thymol — potent antimicrobial compounds. Used for respiratory infections, gut pathogens, and as a natural antibiotic alternative.

Evidence Score
7.5/10
Good Evidence
Safety
Use with caution

Good For

Key Benefits

May support immune system function

Traditionally used to strengthen defensive qi and resistance to illness

May support healthy digestive function

Traditionally used to harmonize the stomach and intestines

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
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, 牛至 (Niú Zhì) has been used for centuries. TCM practitioners use it to reinforce the body's defensive energy (wei qi). It supports the spleen and stomach — the foundation of post-natal qi production in TCM theory.

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 Origanum vulgare

Where to Buy

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