Evidence supporting the use of: Flavanol (mixture)
For the body system: Capillaries

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Table of Contents

Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Flavanols, a subclass of flavonoids found in foods such as cocoa, tea, apples, and berries, have been studied for their effects on vascular health, including capillary function. Scientific evidence suggests that flavanols can support the capillaries and overall vascular system through several mechanisms. These compounds have demonstrated the ability to improve endothelial function, enhance capillary blood flow, and increase nitric oxide bioavailability, which can lead to vasodilation and improved microcirculation.

Clinical studies, particularly those focusing on cocoa flavanols, have shown improvements in flow-mediated dilation, a measure of endothelial health, in both healthy individuals and those with cardiovascular risk factors. Some research also indicates that regular consumption of flavanol-rich foods can reduce capillary fragility and improve skin microcirculation. The European Food Safety Authority (EFSA) has acknowledged that cocoa flavanols help maintain the elasticity of blood vessels, a claim that includes small vascular structures like capillaries.

While most research centers on cocoa-derived flavanols, similar effects have been observed in studies on tea and grape seed flavanols. However, the evidence is strongest for cocoa flavanols, and more research is needed on other flavanol mixtures. Overall, scientific validation supports the use of flavanols for capillary and vascular support, though more large-scale and long-term studies would strengthen the evidence base further.

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