M.C.D. Verain

Sustainable food consumption. Product choice or curtailment

Food consumption is an important factor in shaping the sustainability of our food supply. The present paper empirically explores different types of sustainable food behaviors. A distinction between sustainable product choices and curtailment behavior has been investigated empirically and predictors of the two types of behavior have been identified. Respondents were classified into four segments based on their sustainable food behaviors: unsustainers, curtailers, product-oriented consumers, and sustainers. Significant differences between the segments were found with regard to food choice motives, personal and social norms, food involvement, subjective knowledge on sustainable food, ability to judge how sustainably a product has been produced and socio-demographics. It is concluded that distinguishing between behavioral strategies toward sustainable food consumption is important as consumer segments can be identified that differ both in their level of sustainable food consumption and in the type of behavior they employ.

Flexitarianism : a range of sustainable food styles

People who don’t abstain from meat as a matter of principle may still eat less of it. (Steven Pinker, The Better Angels of our Nature, 2011, p. 472). A shift in Western meat consumption patterns could significantly reduce the ecological effects of the food system. The consumption of meat accounts for a large proportion of the ecological footprint of consumers. Therefore reduction of meat consumption is important in making more sustainable food choices. Although the average consumer may not consider meat consumption as a highly relevant sustainability issue, in scholarly thinking the ecological effects and energy-intensiveness of meat consumption and production have been acknowledged for more than 20 years. As a result of the worldwide rising levels of meat consumption and production, experts increasingly express urgent reasons to adjust meat consumption to more sustainable levels. Although discussions on more sustainable food consumption patterns are mainly focused on meat reduction, from a sustainability perspective a transition is needed towards a diet that is less dependent on all types of animal proteins, including dairy, eggs and fish (see Reisch et al. 2013; Tukker et al. 2011; Westhoek et al. 2011). A switch towards less animal-based and more plant-based diets would not only benefit the sustainability of our diets, but also positively affect consumer health (see Van Dooren et al. 2014).

THE ADDED VALUE OF SUSTAINABILITY MOTIVATIONS IN UNDERSTANDING SUSTAINABLE FOOD CHOICES

Understanding consumer food choices is crucial to stimulate sustainable food consumption. Food choice motives are shown to be relevant in understanding consumer food choices. However, there is a focus on product motives, such as price and taste, whereas process motives (i.e. environmental welfare) are understudied. The current study aims to add to the existing literature by investigating the added value of sustainable process motives (environmental welfare, animal welfare and social justice) above product motives. Two on-line surveys of representative Dutch samples tested whether process motives increase the explained variance of sustainable consumption. The results indicate that sustainable process motives are of added value above product motives in the understanding of consumer food choices. In addition, product categories differ in the sustainable process motives that are most useful in explaining sustainable purchases in that category (Study 1), and different types of sustainable products (organic versus fair trade) differ in the sustainable process motives that are most useful in explaining these purchases (Study 2). In conclusion, this paper shows that understanding of sustainable consumption can be improved by considering sustainable process motives above product motives. Thereby, it is important to take the sustainability dimension (e.g., social justice versus environmental welfare) and the product category (e.g., meat versus fruit) into account.

User-documented food consumption data from publicly available apps: an analysis of opportunities and challenges for nutrition research

BackgroundThe need for a better understanding of food consumption behaviour within its behavioural context has sparked the interest of nutrition researchers for user-documented food consumption data collected outside the research context using publicly available nutrition apps. The study aims to characterize the scientific, technical, legal and ethical features of this data in order to identify the opportunities and challenges associated with using this data for nutrition research.MethodA search for apps collecting food consumption data was conducted in October 2016 against UK Google Play and iTunes storefronts. 176 apps were selected based on user ratings and English language support. Publicly available information from the app stores and app-related websites was investigated and relevant data extracted and summarized. Our focus was on characteristics related to scientific relevance, data management and legal and ethical governance of user-documented food consumption data.ResultsFood diaries are the most common form of data collection, allowing for multiple inputs including generic food items, packaged products, or images. Standards and procedures for compiling food databases used for estimating energy and nutrient intakes remain largely undisclosed. Food consumption data is interlinked with various types of contextual data related to behavioural motivation, physical activity, health, and fitness. While exchange of data between apps is common practise, the majority of apps lack technical documentation regarding data export. There is a similar lack of documentation regarding the implemented terms of use and privacy policies. While users are usually the owners of their data, vendors are granted irrevocable and royalty free licenses to commercially exploit the data.ConclusionDue to its magnitude, diversity, and interconnectedness, user-documented food consumption data offers promising opportunities for a better understanding of habitual food consumption behaviour and its determinants. Non-standardized or non-documented food data compilation procedures, data exchange protocols and formats, terms of use and privacy statements, however, limit possibilities to integrate, process and share user-documented food consumption data. An ongoing research effort is required, to keep pace with the technical advancements of food consumption apps, their evolving data networks and the legal and ethical regulations related to protecting app users and their personal data.