Khaw K T, Thom S
Lancet. 1982 Nov 20;2(8308):1127-9. doi: 10.1016/s0140-6736(82)92787-8.
A randomised double-blind cross-over study of increased oral potassium 64 mmol a day versus placebo was conducted in 20 young healthy males on normal sodium unrestricted diet. A significantly greater proportion had lower systolic and diastolic blood-pressures on potassium than on placebo. The mean diastolic pressure was significantly lowered, by 2.4 mm Hg, during potassium supplementation. Change in diastolic pressure correlated negatively with change in 24-hour urinary potassium and positively which change in 24-hour urinary sodium/potassium ratio in individual subjects.
对20名健康年轻男性进行了一项随机双盲交叉研究，这些男性日常饮食为正常钠摄入且不受限制，研究比较了每天口服64毫摩尔钾与安慰剂的效果。与服用安慰剂相比，服用钾后收缩压和舒张压降低的比例显著更高。在补充钾期间，平均舒张压显著降低了2.4毫米汞柱。个体受试者的舒张压变化与24小时尿钾变化呈负相关，与24小时尿钠/钾比值变化呈正相关。
