本研究采用单盲对照试验,将451名具有心血管疾病危险因素或试验前两周曾发作过缺血性心脏病者随机分为A、B两组。两组受试者在年龄、性别、体重、高血压、高脂血症、吸烟情况、肥胖程度、利尿治疗和糖尿病等方面均配对。B组摄入普通饮食;A组饮食中的钙、镁、钾、铜、硒和铬的含量明显高于B组。两组摄入控制饮食6 In this study, a single-blind controlled trial of 451 patients with risk factors for cardiovascular disease or ischemic heart disease two weeks prior to the trial was randomly divided into A and B groups. The two groups were matched in terms of age, gender, weight, hypertension, hyperlipidemia, smoking status, degree of obesity, diuretic treatment and diabetes. Group B consumed normal diet; Group A dietary calcium, magnesium, potassium, copper, selenium and chromium content was significantly higher than the B group. Ingestion control diet two groups 6