Hatton D C, Haynes R B, Oparil S, Kris-Etherton P, Pi-Sunyer F X, Resnick L M, Stern J S, Clark S, McMahon M, Morris C, Metz J, Ward A, Holcomb S, McCarron D A
McMaster University, Health Sciences Centre, Hamilton, Canada.
Am J Clin Nutr. 1996 Dec;64(6):935-43. doi: 10.1093/ajcn/64.6.935.
Current dietary recommendation for cardiovascular disease risk reduction and recommended dietary allowances (RDAs) were used to develop a nutritionally complete prepackaged prepared meal plan specifically designed to reduce the risk of cardiovascular disease. In the current study we tested patient acceptance of the diet as defined by measures of quality of life. In a randomized, parallel-design, multicenter clinical trial, 77 persons with hypertension, diabetes mellitus, dyslipidemia, or a combination of two or more of these conditions were recruited and randomly assigned to either a prepared meal plan (n = 39) or a comparable self-selected diet (n = 38) for 10 wk. The prepared meal plan met both the RDAs for all essential micronutrients and the dietary recommendations of national health organizations for macronutrients, cholesterol, sodium, and fiber. The prescribed self-selected diet was matched for macronutrients. Quality of life, as measured by a battery of instruments, was the major endpoint. Individuals consuming the prepared meal plan had significant improvements in mental health (P < 0.01), general perceived health (P < 0.005), daily activities (P < 0.05), work performance (P < 0.005), affect (P < 0.01), and nutritional health perceptions (P < 0.001), and reductions in nutrition hassles based on a standardized questionnaire (P < 0.001). The self-selected-diet group had significant improvements in nutritional health perceptions (P < 0.001) and affect (P < 0.001). There were significant improvements in weight (P < 0.001), blood pressure (P < 0.001), cholesterol (P < 0.002), low-density lipoproteins (P < 0.001), glucose (P < 0.014), and glycated hemoglobin (Hb A(1c) (P < 0.004) that were comparable in both groups. In summary, this study shows that a nutritionally complete diet, whether prepackaged or self-selected, improves multiple risk factors for cardiovascular disease. The prepackaged prepared meal plan had the added benefit of a greater improvement in quality of life.
目前用于降低心血管疾病风险的饮食建议和推荐膳食摄入量(RDAs)被用于制定一份营养全面的预包装即食餐计划,该计划专门设计用于降低心血管疾病风险。在当前研究中,我们通过生活质量指标来测试患者对这种饮食的接受程度。在一项随机、平行设计、多中心临床试验中,招募了77名患有高血压、糖尿病、血脂异常或其中两种或更多情况组合的患者,并将他们随机分配到预包装餐计划组(n = 39)或可比的自选饮食组(n = 38),为期10周。预包装餐计划满足了所有必需微量营养素的推荐膳食摄入量以及国家卫生组织对常量营养素、胆固醇、钠和纤维的饮食建议。规定的自选饮食在常量营养素方面进行了匹配。通过一系列工具测量的生活质量是主要终点。食用预包装餐计划的个体在心理健康(P < 0.01)、总体健康感知(P < 0.005)、日常活动(P < 0.05)、工作表现(P < 0.005)、情感(P < 0.01)和营养健康认知(P < 0.001)方面有显著改善,并且根据标准化问卷,营养困扰有所减少(P < 0.001)。自选饮食组在营养健康认知(P < 0.001)和情感(P < = 0.001)方面有显著改善。两组在体重(P < 0.001)、血压(P < 0.001)、胆固醇(P < 0.002)、低密度脂蛋白(P < 0.001)、血糖(P < 0.014)和糖化血红蛋白(Hb A(1c)(P < 0.004)方面都有显著改善。总之,本研究表明,营养全面的饮食,无论是预包装的还是自选的,都能改善心血管疾病的多种风险因素。预包装即食餐计划还有额外的好处,即能更大程度地改善生活质量。