The effect of an apple polyphenol extract rich in epicatechin and flavan-3-ol oligomers on brachial artery flow-mediated vasodilatory function in volunteers with elevated blood pressure.

Nutr J · 2017 · PMC5660451 · PMID 29078780

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did not reach statistical significanceno p-value reported

Therefore, the superiority of apple extract over placebo did not reach statistical significance.

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