Synopsis

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

Polyporus, also known as Polyporus umbellatus or "Zhu Ling" in traditional Chinese medicine (TCM), has a long history of use for supporting the urinary and bladder systems. In TCM, it is primarily valued for its diuretic properties, meaning it is believed to promote urination and help with conditions like edema, dysuria (difficulty urinating), and urinary tract infections. Classical texts and modern TCM formularies cite Polyporus as a key component in herbal formulas designed to "drain dampness" and "clear heat" from the lower burner, which includes the bladder. Scientific evidence supporting these traditional claims is limited but does exist at a preliminary level. Some pharmacological studies have shown that extracts of Polyporus umbellatus can exhibit diuretic effects in animal models. Additionally, certain polysaccharides and ergosterols found in the mushroom have demonstrated anti-inflammatory and immune-modulating properties that could, in theory, support urinary tract health. However, these studies are mostly preclinical and not yet validated in large-scale human trials. Therefore, while Polyporus is traditionally justified for bladder support and some early scientific evidence hints at relevant activities, robust clinical proof is lacking. Its use remains primarily rooted in traditional practice, with a moderate level of supporting evidence for its claimed effects on the bladder and urinary system.

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