基于此，伯恩茅斯大学的研究人员进行了一项研究，并于近期发表于BMC Public Health。该研究调查了标有含有每日五份之三与含有每日五份之一的果蔬汁产品对后续果蔬摄入的影响。使用急性实验设计，194名参与者（90名男性，104名女性）在日常早餐之后随机食用一份标有含有每日五份之三或含有每日五份之一的果蔬汁。
Food product labels based on the WHO 5-a-day fruit and vegetable (FV) message are becoming increasingly common, but these labels may impact negatively on complementary or subsequent FV consumption. This study aimed to investigate the impact of a ‘3 of your 5-a-day’ versus a ‘1 of your 5-a-day’ smoothie product label on subsequent FV consumption.
Methods
Using an acute experimental design, 194 participants (90 males, 104 females) were randomised to consume a smoothie labelled as either ‘3 of your 5-a-day’ (N = 97) or ‘1 of your 5-a-day’ (N = 97) in full, following a usual breakfast. Subsequent FV consumption was measured for the rest of the day using 24-h recall. Usual FV consumption was also assessed via 24-h recall for the day before the study.
Results
Regression analyses revealed a significantly lower subsequent FV consumption following smoothies displaying the ‘3 of your 5-a-day’ label compared to the ‘1 of your 5-a-day’ label (Beta = − 0.15, p = 0.04). Secondary analyses revealed these effects to be driven mainly by changes to consumption in usual high FV consumers, in females and in vegetable as opposed to fruit consumption.
Conclusions
These findings demonstrate a role for label information in food intake, and the potential negative impacts of an exaggerated food product label on healthy food consumption and healthy dietary profiles.
期刊介绍：BMC Public Health is an open access, peer-reviewed journal that considers articles on the epidemiology of disease and the understanding of all aspects of public health. The journal has a special focus on the social determinants of health, the environmental, behavioral, and occupational correlates of health and disease, and the impact of health policies, practices and interventions on the community.
