Synopsis

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

Anthocyanins are a class of flavonoid compounds found in many fruits and vegetables, particularly in berries, red grapes, purple sweet potatoes, and red cabbage. There is a growing body of scientific research that suggests anthocyanins may have beneficial effects on circulation, including cerebral (brain) blood flow. Clinical and preclinical studies have shown that anthocyanins can improve endothelial function, reduce oxidative stress, and modulate inflammatory responses, all of which are important factors in vascular health. Some human studies, including randomized controlled trials, have demonstrated that anthocyanin-rich extracts (such as from blueberries or blackcurrants) can acutely increase cerebral blood flow, enhance vascular reactivity, and may be associated with improvements in cognitive performance, especially in older adults or those at risk for vascular disease. However, while these findings are promising, the evidence base is still developing, and not all studies show consistent results. The precise mechanisms of action are still being clarified, and optimal dosages and long-term effects are not yet fully established. Overall, the use of anthocyanins to support brain circulation is supported by moderate scientific evidence, but further research is needed to confirm their efficacy and to determine clinical recommendations.

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