Department of Preventive Medicine, Rush University Medical Center, 1700 W. Van Buren St., Suite 470, Chicago, IL 60612, United States.
Physiol Behav. 2013 Oct 2;122:129-33. doi: 10.1016/j.physbeh.2013.09.004. Epub 2013 Sep 14.
Caloric beverages may promote obesity by yielding energy without producing satiety, but prior laboratory and intervention studies are inconclusive. This study examined whether the diets of free-living overweight and obese women show evidence that calories from beverages are offset by reductions in solid food within individual eating occasions and across entire days. Eighty-two women weighed and recorded all consumed foods and beverages for seven days. Beverages were coded as high-calorie (≥ 0.165 kcal/g) or low-calorie (<0.165 kcal/g), and total energy intake and energy intake from solid food were calculated for each eating occasion and day. In covariate-adjusted models, energy intake from solid food did not differ between eating occasions that included high-calorie or low-calorie beverages and those with no reported beverage. Energy intake from solid food was also unrelated to the number of high-calorie or low-calorie beverages consumed per day. On average, eating occasions that included a high-calorie beverage were 169 kcal higher in total energy than those with no reported beverage, and 195 kcal higher in total energy than those that included a low-calorie beverage. Each high-calorie beverage consumed per day contributed an additional 147 kcal to women's daily energy intake, whereas low-calorie beverage intake was unrelated to daily energy intake. Beverages contributed to total energy intake in a near-additive fashion among free-living overweight and obese women, suggesting a need to develop more effective interventions to reduce caloric beverage intake in the context of weight management, and to potentially reexamine dietary guidelines.
热量饮料可能会通过提供能量而不产生饱腹感来促进肥胖,但之前的实验室和干预研究结果并不一致。本研究旨在检验自由生活的超重和肥胖女性的饮食是否有证据表明,饮料中的卡路里可以通过减少单个进食时刻和全天的固体食物摄入量来抵消。82 名女性称重并记录了七天内所有摄入的食物和饮料。饮料被编码为高热量(≥0.165 千卡/克)或低热量(<0.165 千卡/克),并计算了每个进食时刻和每天的总能量摄入和固体食物的能量摄入。在经过协变量调整的模型中,包含高热量或低热量饮料的进食时刻与没有报告饮料的进食时刻相比,固体食物的能量摄入没有差异。固体食物的能量摄入也与每天摄入的高热量或低热量饮料数量无关。平均而言,包含高热量饮料的进食时刻总能量比没有报告饮料的进食时刻高 169 千卡,比包含低热量饮料的进食时刻高 195 千卡。每天饮用一杯高热量饮料会使女性的日能量摄入额外增加 147 千卡,而低热量饮料的摄入与日能量摄入无关。在自由生活的超重和肥胖女性中,饮料以近乎累加的方式摄入总能量,这表明需要制定更有效的干预措施来减少热量饮料的摄入,以进行体重管理,并可能重新审视饮食指南。