Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Potassium is scientifically recognized for its important role in supporting cardiovascular health, particularly in the management and prevention of hypertension (high blood pressure), which is a major risk factor for cardiovascular disease (CVD). Multiple epidemiological and clinical studies have demonstrated that higher dietary potassium intake is associated with lower blood pressure and reduced risk of stroke. Potassium helps balance out the negative effects of sodium, relaxes blood vessel walls, and assists in maintaining proper heart rhythm. These physiological roles have been substantiated by randomized controlled trials and meta-analyses, which consistently show that increased potassium intake—especially through food rather than supplements—can decrease blood pressure in both hypertensive and normotensive individuals. The American Heart Association and the World Health Organization recommend adequate dietary potassium for cardiovascular health.

However, potassium supplementation must be approached with caution, particularly in individuals with impaired kidney function or those on medications that affect potassium balance, as excessive potassium (hyperkalemia) can be dangerous and lead to life-threatening cardiac arrhythmias. Nonetheless, the overall evidence base is strong, and potassium is recommended as part of a heart-healthy diet. Historical use of potassium for CVD is less relevant than the robust scientific data supporting its efficacy and safety when used appropriately. Clinical guidelines now routinely emphasize dietary potassium as a modifiable factor in reducing cardiovascular risk.

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Other ingredients used for Cardiovascular Disease

Other health conditions supported by potassium

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