Some people with high blood pressure may benefit from potassium supplements, but they can be dangerous to people who don't need them.

Many foods contain magnesium and potassium, two minerals that are important to heart health, bone health, muscle function, ...

Kidney failure complicates potassium management, making certain fruits dangerous. High potassium levels can lead to serious ...

Salt substitutes are often marketed as a healthier alternative to regular table salt, especially for those looking to manage ...

Bananas may help lower blood pressure due to their high potassium content, which supports kidney function by promoting sodium excretion and relaxing blood vessels. A 2025 study found sex-specific ...

Some healthy foods can also be risky if your kidneys are not healthy. Bananas, oranges, potatoes, and spinach all have high ...

Hypokalemia and even low-normal plasma potassium levels increase the risk of ventricular arrhythmias among patients with cardiovascular disease. An assessment of a strategy of actively increasing ...

MADRID, Spain—Increasing low potassium levels improves clinical outcomes among patients with cardiovascular disease and a high risk for ventricular arrhythmias, the randomized POTCAST trial shows.