Synopsis

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

Black cumin (Nigella sativa) has a long history of use in traditional medicine systems, including Unani and Ayurvedic medicine, for a range of ailments, including kidney stones (urolithiasis). Traditionally, black cumin seeds or their oil have been used as a diuretic and to support kidney health, with the belief that they can help dissolve or expel kidney stones and reduce associated symptoms such as pain and inflammation.

Some traditional texts and ethnobotanical reviews mention the use of black cumin in decoctions or mixed formulations specifically for urinary tract and kidney stone complaints. The proposed mechanisms in traditional use include promoting urine flow to help flush out stones and providing anti-inflammatory effects to soothe the urinary tract.

Scientific evidence for black cumin’s effectiveness against kidney stones remains limited. A handful of animal studies have suggested that extracts of Nigella sativa seed may reduce stone formation or protect kidney tissue, possibly due to antioxidative and anti-inflammatory properties, but robust clinical trials in humans are lacking. As of now, the primary justification for its use in kidney stones is traditional practice, not strong scientific validation.

In summary, while black cumin is traditionally used for kidney stones in some cultures, and there are some preliminary animal studies, there is insufficient human evidence to firmly support its efficacy. Anyone considering its use for kidney stones should consult a healthcare provider.

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