Synopsis

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

Couch grass (Elymus repens, formerly Agropyron repens) has a long history of traditional use in herbal medicine for supporting urinary tract health, including the management of kidney stones. Historical records from European herbalists and folk medicine sources describe couch grass as a diuretic and soothing agent for the urinary system. It has been used to promote increased urine flow ("flushing out" the urinary tract), potentially aiding in the passage of small kidney stones and helping prevent their formation by reducing urinary stasis.

The rhizomes of couch grass contain compounds such as polysaccharides, saponins, and volatile oils, which are believed to contribute to its mild diuretic effects. However, there is limited modern scientific research investigating its efficacy specifically for kidney stones. Most evidence comes from ethnobotanical records, traditional herbal texts, and anecdotal reports. Some laboratory studies have indicated anti-inflammatory and diuretic properties, but these findings do not directly translate to proven benefits for kidney stone prevention or treatment in humans.

While couch grass is included in some contemporary herbal blends for urinary tract health, its use for kidney stones remains primarily based on tradition rather than robust clinical evidence. As such, while it is considered safe in moderate doses, individuals with kidney stones should consult healthcare professionals before relying on couch grass as a primary therapy.

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