Blood pressure reduced by dietary potassium intake

Combining data from 22 randomised controlled trials and 11 cohort studies, researchers from the WHO Collaborating Centre on Nutrition in London, and colleagues, found an intake of 90–120mmol/day was beneficial, reducing systolic BP by 3.49mmHg and diastolic BP by 1.96mmHg in those who had hypertension but not in those without it.

Importantly the studies showed no adverse effects of higher potassium intake on lipids, catecholamine concentrations or renal function, the researchers said.