Synopsis

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

Root tubers, such as those from plants like cassava, yam, sweet potato, and certain medicinal tubers (e.g., Dioscorea species), have a long-standing traditional use as remedies for constipation in adults. This use is primarily supported by traditional medicine systems and empirical dietary practices rather than robust scientific validation. Root tubers are rich in dietary fiber, both soluble and insoluble, which is known to help promote bowel regularity by adding bulk to stool and stimulating intestinal motility. Traditional medicine texts from various cultures, particularly in Asia and Africa, frequently recommend boiled or cooked root tubers as part of a diet to prevent or relieve constipation. However, most of the support comes from observational and anecdotal evidence rather than rigorous clinical trials.

While some modern studies suggest that increased dietary fiber intake is beneficial for constipation, these studies typically examine overall fiber intake rather than the specific effects of root tubers. There is limited scientific research directly evaluating the efficacy of root tuber consumption for constipation relief. Therefore, while the traditional basis for use is strong and the biological plausibility is supported by fiber content, high-quality clinical evidence specific to root tubers is lacking. Thus, the evidence rating is 2, reflecting traditional use with some plausible, but indirect, scientific rationale.

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