Evidence supporting the use of: Labrador tea
For the health condition: Colds (decongestant)

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Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Labrador Tea (Rhododendron groenlandicum and related species) has a long history of traditional use among Indigenous peoples of North America, particularly in the boreal and arctic regions. The leaves of the plant have been prepared as a tea and consumed to help alleviate symptoms of colds, coughs, and congestion. Ethnobotanical sources and historical accounts describe Labrador Tea as a remedy for respiratory ailments, often used as a mild decongestant and to soothe irritated throats. The aromatic leaves contain volatile oils, including ledol and other sesquiterpenes, which may contribute to its perceived effects on the respiratory system. However, there is a lack of robust scientific studies confirming its efficacy as a decongestant or treatment for colds. Most evidence remains anecdotal or based on traditional knowledge. While some phytochemical studies have identified compounds with mild antimicrobial or anti-inflammatory activity, these findings have not been directly linked to clinical outcomes in humans. Therefore, while its use as a decongestant is well established in traditional medicine, scientific validation remains limited.

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