Evidence supporting the use of: White-leaf Manzanita
For the body system: Bladder
Synopsis
Source of validity: Traditional
Rating (out of 5): 2
White-leaf Manzanita (Arctostaphylos viscida) has a history of traditional use among Native American groups in California and the western United States, particularly as a remedy for urinary tract and bladder-related issues. The leaves of manzanita species, including white-leaf manzanita, were commonly prepared as teas or decoctions to support urinary health. Ethnobotanical sources document its use for alleviating urinary tract discomfort, acting as a mild diuretic, and sometimes as an astringent for bladder inflammation. These practices are similar to those involving the closely related bearberry (Arctostaphylos uva-ursi), which contains the active compound arbutin, a known urinary antiseptic.
However, direct scientific evidence for the efficacy of Arctostaphylos viscida specifically in supporting bladder health is lacking. Most phytochemical and pharmacological studies have focused on other Arctostaphylos species, such as bearberry, which has been more extensively researched for its urinary antiseptic properties. While it is likely that white-leaf manzanita shares some similar compounds with other species, there is insufficient modern research to validate its efficacy or safety for the bladder beyond historical and anecdotal reports.
In summary, the use of white-leaf manzanita to support the bladder is primarily justified by traditional ethnobotanical knowledge rather than by scientific studies, and the evidence strength is modest due to the lack of targeted research.
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