Synopsis

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

Palo Azul (Eysenhardtia polystachya), also known as kidney wood, has a long history of traditional use in Mexican and Central American herbal medicine, particularly as a diuretic for supporting urinary health. The bark and wood are commonly prepared as a tea, traditionally used to promote increased urination and to help "cleanse" the urinary tract. While these practices are well-documented in ethnobotanical literature, the rationale is primarily based on anecdotal and cultural beliefs rather than rigorous scientific evaluation.

There are a few preliminary studies and phytochemical analyses indicating that Palo Azul contains flavonoids and other compounds with potential diuretic effects. However, robust clinical trials or pharmacological studies specifically demonstrating safety and efficacy for treating frequent urination are lacking. As such, while its use is justified by tradition and limited in vitro or animal studies suggest possible diuretic activity, the overall evidence is weak by modern scientific standards. The rating reflects reliance on historical usage with minimal direct scientific validation.

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