Burr M L, Leger A S, Westlake C A, Davies H E
Age Ageing. 1975 Aug;4(3):148-51. doi: 10.1093/ageing/4.3.148.
A controlled cross-over trial of supplementary potassium was conducted in 46 elderly people whose dietary intake of potassium appeared to be no more than 45 mEq per day. Their grip strength and mental function were no better after two weeks' treatment with 48 mEq than when they received placebo tablets. It was concluded that the possible benefits of widespread potassium supplementation do not justify the risks which would be incurred.
对46名老年人进行了一项补充钾的对照交叉试验，这些老年人的钾膳食摄入量似乎每天不超过45毫当量。用48毫当量治疗两周后，他们的握力和心理功能并不比服用安慰剂片时更好。得出的结论是，广泛补充钾可能带来的益处并不足以证明所产生的风险是合理的。
