Synopsis

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

Rubus species, which include plants such as blackberry (Rubus fruticosus) and raspberry (Rubus idaeus), have a long history of traditional use for treating diarrhea. In various folk medicine systems, particularly in Europe, North America, and Asia, the leaves, roots, or sometimes the fruits of Rubus plants have been prepared as teas or decoctions to manage gastrointestinal complaints, including diarrhea. The purported activity is generally attributed to the presence of tannins in the plant material, which are known to have astringent properties that can reduce intestinal inflammation and fluid secretion, thereby helping to firm stools.

There are some preclinical studies and limited clinical observations suggesting that Rubus leaves, especially blackberry leaves, may exert mild antidiarrheal effects due to their tannin content and potential antimicrobial properties. However, robust scientific validation from well-designed clinical trials is lacking, and most of the evidence remains anecdotal or based on traditional usage. Major pharmacopoeias and herbal compendia (such as the German Commission E Monographs) recognize the traditional use of Rubus leaf preparations for mild, nonspecific diarrhea, but emphasize that their use is primarily justified by longstanding experience rather than strong scientific proof. Thus, while there is some plausibility and weak evidence supporting the traditional use of Rubus for diarrhea, it should not be considered a substitute for established medical treatments in severe or persistent cases.

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Other ingredients used for Diarrhea

Other health conditions supported by Rubus (unspecified)

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