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Pathophysiology of the Antihypertensive and Cardiovascular Properties of Potassium
1From the Department of Cardiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK.
Insights
Increasing dietary potassium intake offers significant benefits for blood pressure and heart health. This essential mineral helps reduce hypertension and cardiovascular risks, yet its supplementation remains underutilized globally.
Area of Science:
- Cardiology
- Nephrology
- Public Health
Background:
- Hypertension is a prevalent global health issue and a primary risk factor for severe cardiovascular and kidney diseases.
- Effective hypertension management is suboptimal, particularly in developing nations, potentially due to insufficient potassium supplementation.
- Low potassium intake is widespread despite its established role in mitigating cardiovascular risks.
Purpose of the Study:
- To synthesize current scientific evidence on the antihypertensive and cardioprotective effects of potassium.
- To highlight the underutilization of potassium supplementation in clinical practice and guidelines.
- To advocate for increased physician recommendation of potassium intake for hypertensive patients.
Main Methods:
- Comprehensive literature review of studies investigating potassium's impact on blood pressure and cardiovascular outcomes.
- Analysis of global potassium intake patterns and current clinical guideline recommendations.
- Evaluation of the safety and efficacy of potassium supplementation.
Main Results:
- Potassium supplementation demonstrably lowers blood pressure, reducing risks of cardiovascular disease, heart failure, stroke, and mortality.
- Despite benefits, global potassium intake remains low, and recommendations in blood pressure guidelines are infrequent.
- Easy and accessible sources of potassium include supplements and potassium-rich foods like fruits and vegetables.
Conclusions:
- Potassium supplementation is a safe and effective strategy for managing hypertension and preventing cardiovascular events.
- Physicians should actively recommend increased potassium intake to hypertensive patients due to its substantial benefits.
- Addressing low global potassium intake is crucial for improving cardiovascular health outcomes.
Abstract:
This study aims to present the current evidence on the antihypertensive and cardioprotective properties of potassium. Increased potassium intake has been associated with antihypertensive and cardioprotective effects demonstrated by many studies, but its supplementation is infrequent in many countries and not frequently recommended by scientific societies. Hypertension is very common and a major risk factor for cardiovascular disease, heart failure, chronic kidney disease, strokes, and death, but it is poorly controlled, especially in developing countries. The causes for this are multiple and one of them could be the low potassium supplementation or lack of it. A review of the literature revealed that potassium supplementation decreases blood pressure, cardiovascular disease, heart failure, chronic kidney disease, strokes, and death. However, its intake is low and not recommended by several societal blood pressure treatment guidelines with the worldwide potassium intake to be quite low. This is happening despite the fact that potassium supplementation is very easy through potassium salt supplements and from the intake of fruits and vegetables rich in potassium content. Therefore, potassium intake should be recommended by physicians to their hypertensive patients, since its benefits significantly outweigh its risks.
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