Evidence supporting the use of: Barley
For the health condition: Kidney Stones

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Synopsis

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

Barley has a long-standing place in traditional medicine, especially within Ayurvedic and Unani systems, for supporting kidney health and treating urinary tract issues, including kidney stones. The primary traditional preparation is “barley water,” made by boiling barley grains in water, which is believed to have diuretic properties—helping to flush out the urinary system and potentially aiding in the passage of small stones. Ayurvedic texts often recommend barley for its “mutral” (diuretic) effects and as a soothing agent for the urinary tract. In folk medicine, it is thought to reduce irritation and assist in the removal of toxins via increased urination.

Scientific evidence supporting barley’s specific effect on kidney stones is limited. Some laboratory studies suggest that barley contains compounds (such as beta-glucans and antioxidants) that may benefit kidney health in general, but robust clinical trials in humans are lacking. A handful of small observational or animal studies hint at its possible diuretic effect, but these do not directly establish efficacy in dissolving or preventing kidney stones. The use of barley is primarily justified by tradition rather than strong scientific validation.

Overall, while barley is safe for most individuals and may help with hydration—a key aspect of kidney stone prevention—its direct anti-lithic (stone-dissolving) activity has not been clearly demonstrated in scientific research. Its continued use is best viewed as a supportive traditional remedy rather than a proven therapeutic intervention.

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