A recent study indicates that consuming leafy greens and potassium-rich foods like bananas could reduce the risk of heart disease, irregular heartbeats, and mortality by up to 25%.
Foods high in potassium such as salmon, broccoli, and spinach may help the body remove excess salt, decreasing the likelihood of heart-related issues by around 24%.
The researchers focused on how eliminating extra sodium from the bloodstream — which is known to elevate cardiovascular disease risk — could lower that risk overall.
The findings reveal that higher potassium levels in the blood correlate with a significant drop in heart incidents, hospital admissions, or death from any cause.
Professor Henning Bundgaard from Copenhagen University Hospital, the study’s lead author, noted, “Humans originally thrived on a diet dense in potassium and low in sodium, eating fruits and vegetables.”
He explained that modern diets, heavily reliant on processed foods, have drastically altered this balance, shifting from a 10:1 ratio of potassium to sodium to an astonishing 1:2.
Professor Bundgaard emphasized the importance of potassium for heart health, pointing out that insufficient intake raises the risks of arrhythmias, heart failure, and mortality.
In the study, researchers examined 1,200 patients with implantable defibrillators, with half assigned to diets rich in potassium and low in meats, which, while potassium-rich, also add sodium. Results were shared at Madrid’s European Society of Cardiology congress, the largest conference focused on heart health.
He further suggested, “If we look more broadly, increasing potassium intake might benefit not just those with heart issues but potentially everyone. We should consider reducing sodium and enhancing potassium in our diets.”
A separate study earlier this year published in the American Journal of Physiology-Renal Physiology found that increasing potassium intake could also help manage blood pressure.
Anita Layton, one of the researchers, remarked, “Our findings imply that incorporating more potassium-rich foods, like bananas or broccoli, could have a more significant positive effect on blood pressure than merely reducing sodium intake.”
