业已证明，黑种人患高血压及其并发症的比例高于白种人。流行病学调查发现，黑种人常常存在饮食钾摄入减少，并认为这可能是其高血压发病率增高的危险因素。本研究旨在确定补钾对低钾饮食的美籍非洲人血压的影响。对象和方法选择美国巴的摩尔郊区的年龄27－65岁、收缩压（SBP） It has been shown that blacks are more likely to suffer from hypertension and its complications than Caucasians. Epidemiological survey found that blacks often have reduced dietary intake of potassium, and that this may be the risk factor for the increased incidence of hypertension. The aim of this study was to determine the effect of potassium supplementation on blood pressure in African Americans with a low potassium diet. Subjects and methods Select the suburbs of Moore, Pakistan, aged 27-65 years. Systolic blood pressure (SBP)