American Arbor-Vitae
Thuja occidentalis
Thuja occidentalis, commonly known as white cedar or northern white-cedar, is a traditional medicine plant native to North America. While its use in specific traditions and for particular ailments has not been extensively documented, it has shown some promising properties in scientific research. The ethanol extract of Thuja occidentalis demonstrated strong antioxidant activity, comparable to synthetic antioxidants in certain assays, though the evidence remains limited. Additionally, both Thuja and myrtle essential oils exhibited varying degrees of antimicrobial activity; however, myrtle oil was found to be more potent and broadly effective against specific bacteria and fungi. The essential oil analysis of Thuja occidentalis primarily focused on Pinus sylvestris, which indicated a significant reduction in methane concentration by about 28.7% in vivo. Notably, there is no recorded evidence of major safety issues or drug interactions associated with Thuja occidentalis.
- Best evidence
- D
- Cautions
- —
Informational only. Traditional use does not mean proven effectiveness. Evidence and safety vary — check the cited sources.
What the science says
- The ethanol extract of Thuja occidentalis showed strong antioxidant activity comparable to synthetic antioxidants in some assays.
- Thuja and myrtle essential oils showed varying antimicrobial activities, with myrtle oil exhibiting more potent and broad-spectrum activity against certain bacteria and fungi.
- Thuja occidentalis was one of the conifer species analyzed in this study on essential oils.
- The freezing tolerance of Thuja occidentalis was not affected by arbuscular mycorrhizal infection.
Frequently asked questions
What is American Arbor-Vitae?
American Arbor-Vitae (Thuja occidentalis) is a plant documented in FolkKB's traditional-medicine reference, drawn from sourced literature and cross-checked against the evidence.
What does the scientific evidence say about American Arbor-Vitae?
4 sourced findings are recorded for American Arbor-Vitae; the strongest carries evidence grade D. For example: The ethanol extract of Thuja occidentalis showed strong antioxidant activity comparable to synthetic antioxidants in some assays.
How strong is the evidence for American Arbor-Vitae?
The strongest finding for American Arbor-Vitae carries evidence grade D — preliminary or traditional. Grades run A (strongest) to D (preliminary or traditional).
Is American Arbor-Vitae safe? What are the side effects?
No major safety issues are recorded for American Arbor-Vitae in our sources, but the data may be incomplete. Consult a qualified professional before use.
Does American Arbor-Vitae interact with medications?
No drug interactions are recorded for American Arbor-Vitae in our sources. This does not rule them out — check with a pharmacist.
What are the common names of American Arbor-Vitae?
American Arbor-Vitae is also known as: Туя западная, Thuya occidental.
Is American Arbor-Vitae a proven treatment?
No. FolkKB is informational only. Traditional use and early findings are not proof of efficacy or safety — consult a qualified professional and never self-treat.
Sources
- T2 Chemical Characterization, Evaluation of Antimicrobial Potential, and Cytotoxic Activity of Thuja occidentalis L. and Myrtus communis L. Essential Oils for Topical Applications. literature abstract metadata
- T2 Freezing tolerance and recovery of arbuscular-mycorrhizal and non-mycorrhizal Thuja occidentalis. literature abstract metadata
- T2 Valorization of white cedar (Thuja occidentalis) cones: evaluation of its potential to be a new antioxidant source. literature abstract metadata
- T2 Chemical Characterization and Rumen-Modulating Effects of Pinus sylvestris Essential Oil: In Vitro and In Vivo Study. literature abstract metadata