Evidence supporting the use of: Flavanols
For the health condition: Circulation (to the brain)

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Synopsis

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

Flavanols, a class of polyphenolic compounds found abundantly in foods like cocoa, tea, and certain fruits, have garnered scientific interest for their potential to support vascular health, including cerebral (brain) circulation. Several studies suggest that flavanols can improve endothelial function, which is crucial for the regulation of blood flow. The mechanism is thought to involve increased bioavailability of nitric oxide, leading to vasodilation and improved blood flow to various organs, including the brain.

Clinical trials have demonstrated that consumption of flavanol-rich cocoa or chocolate can acutely enhance cerebral blood flow and cognitive performance in both healthy adults and older individuals. For example, a randomized controlled trial published in "Hypertension" (2012) found that daily cocoa flavanol consumption improved cerebral blood flow in elderly subjects. Other studies have observed improved performance on cognitive tasks after acute or chronic intake of flavanol-containing foods, although results are not uniformly consistent.

While the body of evidence is promising, most studies are relatively short-term, use specific extracts or high doses not always achievable through diet, and there is variability in outcomes. Nonetheless, the proposed biological mechanisms and repeated positive findings in peer-reviewed research provide moderate scientific validation for the use of flavanols in supporting cerebral circulation.

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Products containing Flavanols

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