Synopsis

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

Nigella seed (Nigella sativa, also known as black seed or kalonji) has a long history of use in traditional medicine systems, particularly in Middle Eastern and South Asian cultures. Historically, it has been used for a wide range of ailments, including infections and inflammatory conditions. Its use for bladder infections (urinary tract infections, or UTIs) is primarily grounded in these traditional practices rather than robust clinical evidence. In folk medicine, nigella seeds are believed to have antimicrobial and anti-inflammatory properties, which are thought to benefit urinary health and potentially help with infections.

Scientific studies on nigella seed have demonstrated antibacterial activity against a range of bacteria in laboratory (in vitro) settings, including some that can cause urinary tract infections. However, clinical trials specifically evaluating its effectiveness for bladder infections in humans are lacking. The evidence largely remains anecdotal or based on extrapolation from general antimicrobial effects observed in lab studies. As such, while the traditional use is well-documented, scientific validation for its use in treating bladder infections specifically is limited, leading to a low evidence rating.

In summary, nigella seed is used for bladder infections mainly due to traditional beliefs and historical usage, with only preliminary scientific support and no direct clinical evidence to justify its effectiveness for this condition.

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