Evidence supporting the use of: Poria mushroom
For the body system: Bladder

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Synopsis

Source of validity: Traditional
Rating (out of 5): 3

Poria mushroom (Poria cocos, also known as Fu Ling in Traditional Chinese Medicine) has a long history of use in East Asian herbal traditions. It is commonly included in formulas to support urinary health, promote urination, and address symptoms related to water retention, which is often interpreted as benefiting the Bladder system in these medical frameworks. In classical Chinese medicine texts, Poria is considered to “drain dampness” and strengthen the Spleen, with indirect benefits for the Bladder by promoting the proper movement of fluids through the body. It is frequently paired with other herbs in formulas aimed at relieving urinary difficulty, edema, or frequent urination. Modern scientific research on Poria focuses mainly on its diuretic properties and effects on kidney and immune function. Some animal studies suggest mild diuretic activity, which could theoretically support traditional claims. However, robust clinical evidence in humans specifically supporting its use for bladder health is limited. The traditional use is strong and well-documented, forming the basis for its continued inclusion in bladder-support herbal remedies. Thus, while scientific validation is limited, the historical use of Poria mushroom for bladder and urinary system support is clear and widespread in traditional medicine, warranting a moderate evidence rating based on tradition.

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