Department of Kinesiology & Public Health, the Center for Health Research, California Polytechnic State University, San Luis Obispo, California, USA.
Texas A&M Agrilife Research, Dallas, Texas, USA.
J Hum Nutr Diet. 2022 Oct;35(5):924-933. doi: 10.1111/jhn.12977. Epub 2021 Dec 30.
The present study aimed to examine motivations for food choice among long-term weight loss maintainers (WLM) in a widely used commercial weight management program.
A cross-sectional study was employed where determinants of food choice were measured in the USA using validated scales: Food Choice Questionnaire, Consideration of Future Consequences, and Eating in the Absence of Hunger. Participants were 3806 WLM following a commercial weight management program (WW International, Inc.) who had maintained a weight loss ≥ 9.1 kg (mean 24.7 kg) for 3.3 years and had a body mass index (BMI) of 27.6 kg m . A control group of weight stable individuals with obesity (controls; n = 519) had a BMI of 38.9 kg m and a weight change < 2.3 kg over the previous 5 years.
WLM vs. controls made food decisions more based on health (18.9 vs. 16.3; η = 0.052) and weight control (9.9 vs. 7.5; η = 0.16) and less based on price (8.4 vs. 9.1; η = 0.10). WLM also scored higher than controls with respect to considering future consequences of behaviours (44.3 vs. 38.4; η = 0.060) and reported less external eating in the absence of hunger (7.1 vs. 7.5; η = 0.058). Standard canonical coefficients indicated that making food choices based on weight (0.717) with less value placed on price (-0.33) and greater consideration of future consequences (0.262) contributed independently and most (overall r = 0.593; p = 0.0001) to discriminating WLM from controls.
In a widely used commercial weight management program, successful WLM reported food decisions based more on weight and less on price and considered future consequences of current behaviours.
本研究旨在考察长期体重维持者（WLM）在广泛使用的商业体重管理计划中选择食物的动机。
采用横断面研究，在美国使用经过验证的量表测量食物选择的决定因素：食物选择问卷、对未来后果的考虑和饥饿时进食。参与者为 3806 名遵循商业体重管理计划（WW 国际公司）的 WLM，体重减轻≥9.1kg（平均 24.7kg），持续 3.3 年，体重指数（BMI）为 27.6kg/m。肥胖的体重稳定对照者（对照组；n=519）BMI 为 38.9kg/m，体重变化<5 年内 2.3kg。
与对照组相比，WLM 更基于健康（18.9 对 16.3；η²=0.052）和体重控制（9.9 对 7.5；η²=0.16）做出食物决定，而较少基于价格（8.4 对 9.1；η²=0.10）。WLM 在考虑行为的未来后果方面也高于对照组（44.3 对 38.4；η²=0.060），报告在饥饿时更少的外部进食（7.1 对 7.5；η²=0.058）。标准典型系数表明，基于体重做出食物选择（0.717），较少关注价格（-0.33），更多考虑未来行为的后果（0.262）独立且大部分（总体 r=0.593；p=0.0001）有助于区分 WLM 与对照组。
在广泛使用的商业体重管理计划中，成功的 WLM 报告基于体重的食物决策更多，而基于价格的食物决策更少，并考虑当前行为的未来后果。
