What is the recommended dose of Oregano Oil?

- **Look for:** Standardized to ≥70% carvacrol; emulsified soft gel form; Origanum vulgare species; dose specified in mg - **Avoid:** Undiluted essential oil for internal use; products containing t...

Is Oregano Oil safe to take daily?

Oregano Oil is rated "Generally Safe" based on clinical evidence. Always consult your healthcare provider before starting any supplement.

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Ingredient Research

Graded against 173,636 supplements + 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, NIH DSLD

Oregano Oil

MODERATE EVIDENCESupplementLast updated

AVELOR SUMMARY

Oregano oil contains carvacrol and thymol — two phenolic compounds with potent antimicrobial, antifungal, and antiparasitic activity in vitro. It kills Candida, MRSA, E. coli, and Giardia in test tubes at concentrations achievable with supplementation. Our research shows the human clinical data is MUCH thinner than the impressive in vitro results: a single 2000 study found 600mg emulsified oregano oil eliminated intestinal parasites in 14 of 14 patients. However, long-term use risks gut microbiome disruption — oregano oil is essentially a broad-spectrum antimicrobial that doesn't distinguish between pathogenic and beneficial bacteria. It should be used as a short-course treatment, not a daily supplement.

WHAT IT DOES

Carvacrol and thymol (the primary active phenols, comprising 60-80% of oregano essential oil) disrupt microbial cell membranes by intercalating into the lipid bilayer, increasing permeability and causing leakage of cellular contents. This mechanism is: (1) effective against bacteria, fungi, and protozoa simultaneously; (2) difficult for organisms to develop resistance against (membrane disruption vs enzyme inhibition); (3) NON-SELECTIVE — it damages beneficial gut bacteria equally. Additional mechanisms include inhibition of bacterial efflux pumps (potentially resensitizing antibiotic-resistant organisms) and NF-κB inhibition (anti-inflammatory).

OPTIMAL DOSAGE

Look for: Standardized to ≥70% carvacrol; emulsified soft gel form; Origanum vulgare species; dose specified in mg
Avoid: Undiluted essential oil for internal use; products containing thyme oil marketed as oregano; Origanum majorana (marjoram — different plant); non-standardized products
Minimum effective dose: 200mg emulsified oil/day (standardized to carvacrol)
Third-party tested brands: ADP (Biotics Research — enteric-coated), North American Herb & Spice (Oreganol P73), NOW Foods

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SAFETY PROFILE

Critical Interactions (Do Not Combine Without Medical Supervision)

Moderate Interactions (Monitor Closely)

Theoretical/Low-Risk Interactions

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Independently graded against 173,636 indexed supplements with 177 published clinical interactions, sourced from PubMed, FDA CAERS, openFDA, and NIH DSLD | Last updated:

Not medical advice. Based on published clinical research and systematic reviews.

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