Evidence supporting the use of: Vegetable Fiber (unspecified)
For the health condition: Gall Stones

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Synopsis

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

Dietary vegetable fiber is supported by some scientific evidence for its role in reducing the risk of gallstone formation, though it is not typically used as a direct treatment for existing gallstones. Epidemiological studies have shown that higher intake of dietary fiber, particularly from vegetables, correlates with a reduced incidence of gallstones. The proposed mechanisms include fiber’s ability to reduce intestinal absorption of bile acids and cholesterol, increase fecal bile acid excretion, and improve insulin sensitivity—factors that collectively help lower the saturation of cholesterol in bile, which is a key factor in gallstone formation. A few prospective studies and reviews (e.g., Tsai et al., Am J Clin Nutr, 2004) have found that high fiber diets are associated with lower risk of developing gallstones, especially in women. However, there is limited clinical evidence that increasing fiber intake can dissolve or treat existing stones. Most guidelines recommend fiber for prevention rather than treatment. No specific vegetable fiber has been identified as uniquely effective; rather, the benefit is attributed to overall high fiber consumption from various plant sources. Thus, while there is scientific support for the preventive role of vegetable fiber in gallstone disease, its use as a treatment for established gallstones is not substantiated by robust clinical trials.

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