Rhonda Patrick· PhD
Even when sodium intake was also doubled, boosting potassium still resulted in meaningful reductions: approximately 7 mmHg in men and 5 mmHg in women.
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The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
Even when sodium intake was also doubled, boosting potassium still resulted in meaningful reductions: approximately 7 mmHg in men and 5 mmHg in women.
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In contrast, doubling potassium intake, with normal sodium levels, lowered blood pressure by about 7–10 mmHg in men and 5–10 mmHg in women.
Doubling sodium intake increased blood pressure by roughly 2–4 mmHg in men and 1–3 mmHg in women.