School of Nursing and Department of Clinical Epidemiology & Biostatistics, McMaster University, Hamilton, ON, Canada.
J Hum Nutr Diet. 2010 Apr;23(2):162-8. doi: 10.1111/j.1365-277X.2009.01029.x. Epub 2010 Jan 22.
The prevalence of obesity and being overweight is rising among adult Canadians and diet is recognised as one of the main causes of obesity. The consumption of fruit and vegetables is shown to be protective against obesity and being overweight but little is known about the association of fruit juice consumption and obesity and being overweight. The present study aimed to investigate the association between fruit juice consumption and self-reported body mass index (BMI) among adult Canadians.
This analysis is based on the Canadian Community Health Survey, Cycle 3.1. A regression method was used to assess the association of fruit juice consumption with self-reported BMI in 18-64-year-old Canadians who had been adjusted for sex, age, total household income, education, self-rated health, and daily energy expenditure. Because the analysis is based on a cross-sectional dataset, it does not imply a cause and effect relationship.
Almost 38.6% of adult Canadians reported a fruit juice intake of 0.5-1.4 times per day and 18.2% consumed fruit juice more than 1.5 times per day. Participants with normal weight were likely to consume more fruit juice than obese individuals. Regression analysis showed a negative association between fruit juice consumption and BMI after adjusting for age, sex, education, marital status, income, total fruit and vegetable intake, daily energy expenditure, and self-rated health. On average, for each daily serving of fruit juice, a -0.22 unit (95% confidence interval = -0.33 to -0.11) decrease in BMI was observed.
The results obtained showed a moderate negative association between fruit juice intake and BMI, which may suggest that a moderate daily consumption of fruit juice is associated with normal weight status.
加拿大成年人的肥胖和超重患病率正在上升，饮食被认为是肥胖的主要原因之一。研究表明，水果和蔬菜的摄入对预防肥胖和超重具有保护作用，但关于果汁摄入与肥胖和超重之间的关系知之甚少。本研究旨在调查加拿大成年人中果汁摄入与自我报告体重指数（BMI）之间的关系。
本分析基于加拿大社区健康调查，第 3.1 周期。使用回归方法评估了 18-64 岁加拿大成年人中果汁消费与自我报告 BMI 之间的关系，这些成年人已经根据性别、年龄、家庭总收入、教育程度、自我评估健康状况和每日能量消耗进行了调整。由于分析基于横断面数据集，因此并不意味着存在因果关系。
近 38.6%的加拿大成年人报告每天摄入 0.5-1.4 次果汁，18.2%的人每天摄入果汁超过 1.5 次。体重正常的参与者比肥胖者更有可能摄入更多的果汁。回归分析显示，在调整年龄、性别、教育程度、婚姻状况、收入、水果和蔬菜总摄入量、每日能量消耗和自我评估健康状况后，果汁消费与 BMI 呈负相关。平均而言，每天每摄入一份果汁，BMI 就会下降 0.22 个单位（95%置信区间=-0.33 至-0.11）。
研究结果表明，果汁摄入与 BMI 之间存在中度负相关，这可能表明适度的每日果汁摄入量与正常体重状态有关。
