Synopsis

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

Stinging Nettle (Urtica dioica) has a long history of traditional use for supporting urinary tract health, particularly in Europe. In recent decades, scientific studies have investigated its effects, especially concerning benign prostatic hyperplasia (BPH) and related lower urinary tract symptoms (LUTS). Several clinical trials and reviews have indicated that nettle root extracts can reduce symptoms such as urinary frequency, urgency, and nocturia in men with BPH, when used alone or in combination with other herbs like saw palmetto. The mechanism of action is not fully understood, but nettle root may have anti-inflammatory effects, inhibit certain enzymes involved in prostate cell growth, and modulate hormone activity.

For general urinary tract health (beyond BPH), evidence is less robust, though some traditional herbalists recommend nettle leaf or root as a mild diuretic and anti-inflammatory. Systematic reviews and authoritative monographs (such as those by the European Medicines Agency) acknowledge the use of nettle for urinary complaints related to BPH, but also note that more high-quality, long-term research is needed to fully confirm efficacy and safety. Overall, there is moderate scientific support for stinging nettle in supporting the urinary system, particularly in the context of mild BPH-related symptoms.

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