Hannum S M, Carson L A, Evans E M, Petr E L, Wharton C M, Bui L, Erdman J W
Food Science and Human Nutrition Department/Nutritional Sciences Division, University of Illinois, Urbana, IL 61801, USA.
Diabetes Obes Metab. 2006 Mar;8(2):146-55. doi: 10.1111/j.1463-1326.2005.00493.x.
This study assessed the efficacy of a weight-loss diet by using packaged portion-controlled entrees vs. a self-selected diet based on the United States Department of Agriculture Food Guide Pyramid (FGP).
Sixty healthy overweight men (body mass index (BMI) 26-42 kg/m2; aged 24-60 years) were randomized into two groups for an 8-week intervention. Group E consumed two portion-controlled entrees daily, plus recommended servings from the FGP. Group P consumed a self-selected diet consisting of a recommended number of servings from the FGP. Diets were designed to be isocaloric (1700 kcal) and identical in macronutrient composition (55% carbohydrate, 25% protein and 20% fat). Participants were instructed to make no changes in physical activity levels. Each group was blinded to the protocol of the other group, and received separate diet instructions, but no behavioural or diet counselling. Outcomes included weight, BMI, body composition by dual energy X-ray absorptiometry, waist and hip circumference, blood pressure (BP), fasting blood lipids, glucose, insulin and C-reactive protein.
Fifty-one men completed the study. The portion-control group E (n = 25) experienced greater decreases in weight (-7.4 +/- 3.1 vs. -5.1 +/- 4.0 kg), BMI (-2.4 +/- 1.0 vs. -1.6 +/- 1.3 kg/m2), fat mass (-3.6 +/- 1.8 vs. -2.5 +/- 1.8 kg), waist circumference (-6.6 +/- 3.3 vs. -4.3 +/- 2.9 cm) and diastolic BP (-6.0 +/- 7.2 vs. + 0.2 +/- 10.1 mmHg) than group P (n = 26) (p < 0.05). Consumption of a packaged entree diet resulted in greater losses of weight and fat mass, and reduced BP.
Use of packaged entrees as part of a weight-loss diet is an effective means of achieving portion control and enhancing losses of weight and fat mass in overweight men.
本研究评估了采用定量包装主餐的减肥饮食与基于美国农业部食物指南金字塔（FGP）的自选饮食的效果。
60名健康超重男性（体重指数（BMI）26 - 42 kg/m²；年龄24 - 60岁）被随机分为两组，进行为期8周的干预。E组每天食用两份定量包装主餐，外加FGP推荐的食物量。P组食用由FGP推荐食物量组成的自选饮食。饮食设计为等热量（1700千卡），宏量营养素组成相同（55%碳水化合物、25%蛋白质和20%脂肪）。参与者被告知身体活动水平不变。每组对另一组的方案不知情，并接受单独的饮食指导，但没有行为或饮食咨询。结果包括体重、BMI、通过双能X线吸收法测定的身体成分、腰围和臀围、血压（BP）、空腹血脂、血糖、胰岛素和C反应蛋白。
51名男性完成了研究。定量控制组E（n = 25）在体重（-7.4 ± 3.1 vs. -5.± 4.0 kg）、BMI（-2.4 ± 1.0 vs. -1.6 ± 1.3 kg/m²）、脂肪量（-3.6 ± 1.8 vs. -2.5 ± 1.8 kg）、腰围（-6.6 ± 3.3 vs. -4.3 ± 2.9 cm）和舒张压（-6.0 ± 7.2 vs. + 0.2 ± 10.1 mmHg）方面的下降幅度大于P组（n = 26）（p < 0.05）。食用定量包装主餐饮食导致体重和脂肪量的更大减少，并降低了血压。
将定量包装主餐作为减肥饮食的一部分是实现分量控制以及增加超重男性体重和脂肪量减少的有效方法。
