Evidence supporting the use of: Berry
For the health condition: Bladder Infection

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Synopsis

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

Several types of berries have been traditionally used to support urinary tract health and to help manage bladder infections, with cranberry (Vaccinium macrocarpon) being the most notable example. The use of cranberries for bladder infections (urinary tract infections, or UTIs) is rooted in North American indigenous medicine, and this tradition has persisted into modern complementary and alternative medicine. The believed mechanism is that certain compounds in cranberries, such as proanthocyanidins, may prevent bacteria (especially Escherichia coli) from adhering to the walls of the urinary tract, making infections less likely to take hold.

Scientific studies on cranberry's effectiveness have produced mixed results. Some meta-analyses suggest a modest benefit in preventing recurrent UTIs, particularly in women with frequent infections, while others show no significant effect compared to placebo. Other berries, such as bearberry (Arctostaphylos uva-ursi), have also been used traditionally for urinary complaints, but robust clinical data are lacking. Overall, while there is a strong tradition supporting the use of certain berries for bladder infections, the scientific evidence is limited and inconsistent, and berries should not replace standard medical treatment for active infections.

In summary, the use of unspecified "berry" for bladder infection is primarily justified by tradition, with some scientific investigation (especially for cranberry), but the evidence is not strong enough to warrant a high rating.

More about berry
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