The researchers famous: “A big proportion of the overall inhabitants has blood stress inside the vary included on this trial, making outcomes of the trial relevant to people at elevated threat of hypertension.”
Whereas assessing which parts of black tea delivered the hypertensive results, the workforce hypothesised that the polyphenols in black tea did by bettering endothelial dysfunction.
It had beforehand been demonstrated that flavonoids have been useful for endothelial perform by rising nitric oxide and decreasing the focus of the amino acid endothelin.
The findings are according to these of a 2021 study led by the College of California and the College of Copenhagen, which discovered that antioxidants in tea might open ion channels, and calm down the muscle groups that line blood vessels.