Evidence supporting the use of: Fagopyrum (unspecified)
For the body system: Veins

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Synopsis

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

Fagopyrum, commonly known as buckwheat (most often referring to Fagopyrum esculentum), is traditionally and scientifically associated with the support of the veins and vascular system. Its use is primarily linked to its high content of rutin, a bioflavonoid. Rutin has been studied for its benefits in strengthening capillaries and reducing their permeability and fragility. Several clinical and preclinical studies indicate that rutin can help with symptoms of chronic venous insufficiency, such as varicose veins, leg swelling, and hemorrhoids. For example, a 2004 review in "Phytotherapy Research" notes that rutin and other flavonoids have demonstrated venotonic (vein-strengthening) actions, and can decrease capillary leakage and edema.

Historically, buckwheat-derived preparations have been used in European herbal medicine for circulatory issues, especially in the context of weak veins and hemorrhoids. Modern supplements and pharmaceutical products containing rutin or buckwheat extracts are used in some countries for similar purposes. However, while the evidence base supports some benefit, large-scale, high-quality randomized controlled trials are limited, and most evidence comes from small studies and traditional use. Therefore, scientific validation exists but is moderate rather than robust.

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