Responses to a single dose of different polyphenols on the microcirculation and systemic circulation in rats

•Haemodynamic changes after administration of 11 polyphenols (10 mg/kg) were compared.•Flavan-3-ols elevated blood pressure, heart rate and blood flow in skeletal muscle.•Quercetin or theaflavins raised blood flow in skeletal muscle.•Blood pressure was increased after (−)-epicatechin, cyanidin or daidzein treatment.•There was no hemodynamic change by EGCG, hesperidin, trans-resveratrol gnetin C or curcumin.