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Food-based dietary guidelines (FBDG) have primarily been designed for the consumer to encourage healthy, habitual food choices, decrease chronic disease risk and improve public health. However, minimal research has been conducted to evaluate whether FBDG are utilised by the public. The present review used a framework of three concepts, awareness, understanding and use, to summarise consumer evidence related to national FBDG and food guides. Searches of nine electronic databases, reference lists and Internet grey literature elicited 939 articles. Predetermined exclusion criteria selected twenty-eight studies for review. These consisted of qualitative, quantitative and mixed study designs, non-clinical participants, related to official FBDG for the general public, and involved measures of consumer awareness, understanding or use of FBDG. The three concepts of awareness, understanding and use were often discussed interchangeably. Nevertheless, a greater amount of evidence for consumer awareness and understanding was reported than consumer use of FBDG. The twenty-eight studies varied in terms of aim, design and method. Study quality also varied with raw qualitative data, and quantitative method details were often omitted. Thus, the reliability and validity of these review findings may be limited. Further research is required to evaluate the efficacy of FBDG as a public health promotion tool. If the purpose of FBDG is to evoke consumer behaviour change, then the framework of consumer awareness, understanding and use of FBDG may be useful to categorise consumer behaviour studies and complement the dietary survey and health outcome data in the process of FBDG evaluation and revision.

Purpose Despite the wide availability of effective weight loss programmes, maintenance of weight loss remains challenging. Difficulties in emotion regulation are associated with binge eating and may represent one barrier to long-term intervention effectiveness in obesity. The purpose of this study was to determine the relationship between emotion regulation difficulties and the extent of weight regain in a sample of adults who had lost, and then regained, weight, and to examine the characteristics associated with emotional difficulties. Methods 2000 adults from three European countries (UK, Portugal, and Denmark) completed an online survey assessing self-reported weight loss and regain following their most recent weight loss attempt. They also completed a binge eating disorder screening questionnaire and, if they had regained weight, were asked if they attributed it to any emotional factors (a proxy for emotion regulation difficulties). Spearman’s correlations and logistic regression were used to assess the associations between emotion regulation, weight regain, and strategy use. Results Emotion regulation difficulties were associated with greater weight regain ( N  = 1594 who lost and regained weight). Attribution to emotional reasons was associated with younger age, female gender, loss of control and binge eating, lower perceptions of success at maintenance, using more dietary and self-regulatory strategies in weight loss, and fewer dietary strategies in maintenance. Conclusions Weight-related emotion regulation difficulties are common amongst regainers and are associated with regaining more weight. Affected individuals are already making frequent use of behavioural strategies during weight loss, but do not apply these consistently beyond active attempts. Simply encouraging the use of more numerous strategies, without concurrently teaching emotion regulation skills, may not be an effective means to improving weight outcomes in this group. Level of evidence Level V, descriptive (cross-sectional) study.

The concept of sustainability has been widely discussed in the public arena by public entities and companies; however, consumers express inconsistency and confusion around the meaning of sustainability. This study aims to provide insights into consumers’ associations with the concept of sustainability in general and within two behavioural domains that represent daily necessities (i.e., food and clothing), in addition to exploring the motivational drivers behind sustainable behaviours. A total of 23 semi-structured interviews were conducted with young consumers in Denmark to address this aim. Consumers perceived the concept of sustainability as complex and mainly related it to environmental aspects, whereas social and economic aspects were less emphasised. The interviewees used examples of sustainable behaviours, which cover the whole consumption-cycle, when interpreting sustainability. Consumers had various motivations to engage in sustainable behaviours and these varied by the stage in the consumption-cycle and domain. The interviewees displayed external motivation (e.g., save money, better taste), introjected motivation (e.g., impress others, public self-consciousness), internalised motivation (e.g., reflection of self) and even intrinsic motivation (e.g., pure interest) to engage in different types of sustainable food or clothing behaviours across the consumption-cycle. Different types of motivations drove the same behaviour, suggesting potential synergies or internal conflicts.

Food waste generated at the household level represents about half of the total food waste in high-income countries, making consumers a target for food waste reduction strategies. To successfully reduce consumer food waste, it is necessary to have an understanding of factors influencing food waste behaviors (FWB). The objective of this study was to investigate socio-demographic predictors of FWB among consumers in two European countries: Denmark and Spain. Based on a survey involving 1518 Danish and 1511 Spanish consumers, we examined the associations of age, sex, education, marital status, employment status, and household size with FWB. By using structural equation modeling based on confirmatory factor analysis, we created the variable FWB from self-reported food waste and two activities that have been correlated with the amount of food wasted in previous studies: namely, shopping routines and food preparation. Results show that being older, unemployed, and working part-time were associated with less food waste behavior in both countries. In Denmark, being male was associated with more food waste behavior, and living in a household with four or more people was associated with less food waste behavior. These results underscore the modest role of socio-demographic characteristics in predicting food waste behavior in Europe.

Background: Digital behavior change interventions (DBCIs) offer a promising channel for providing health promotion services. However, user experience largely determines whether they are used, which is a precondition for effectiveness. Objective: The primary aim of this study is to evaluate user experiences with the NoHoW Toolkit (TK)-a DBCI that targets weight loss maintenance-over a 12-month period by using a mixed methods approach and to identify the main strengths and weaknesses of the TK and the external factors affecting its adoption. The secondary aim is to objectively describe the measured use of the TK and its association with user experience. Methods: An 18-month, 2×2 factorial randomized controlled trial was conducted. The trial included 3 intervention arms receiving an 18-week active intervention and a control arm. The user experience of the TK was assessed quantitatively through electronic questionnaires after 1, 3, 6, and 12 months of use. The questionnaires also included open-ended items that were thematically analyzed. Focus group interviews were conducted after 6 months of use and thematically analyzed to gain deeper insight into the user experience. Log files of the TK were used to evaluate the number of visits to the TK, the total duration of time spent in the TK, and information on intervention completion. Results: The usability level of the TK was rated as satisfactory. User acceptance was rated as modest; this declined during the trial in all the arms, as did the objectively measured use of the TK. The most appreciated features were weekly emails, graphs, goal setting, and interactive exercises. The following 4 themes were identified in the qualitative data: engagement with features, decline in use, external factors affecting user experience, and suggestions for improvements. Conclusions: The long-term user experience of the TK highlighted the need to optimize the technical functioning, appearance, and content of the DBCI before and during the trial, similar to how a commercial app would be optimized. In a trial setting, the users should be made aware of how to use the intervention and what its requirements are, especially when there is more intensive intervention content.

The aim of this study was to examine what reasons consumers give for either choosing or not choosing functional foods. Laddering interviews were used to find out how consumers described their reasons for choosing functional food alternatives in different product categories and how these descriptions are linked with values. Yoghurt, spread, juice, carbonated soft drinks, sweets and ice cream were used as example product categories. In total, five central means-end chains, describing the product attributes, consequences and values behind respondents' food choices, were found, which referred to healthiness, taste and pleasure, security and familiarity, convenience and price. They were found to be independent from each other and had different connotations depending on the product category. The results indicate that respondents did not see functional foods as one homogenous group over different product categories. Instead, consumers seemed to perceive functional products as a member of the general product category such as yoghurt or spread and only secondarily as a functional food.

Background A high intake of dietary fibre has been suggested to support the regulation of energy intake and satiety, which could contribute favourably to the increasing obesity problem. Aim of the study To investigate the effects of three fibres differing in chemical and physical properties on perceived satiety and hunger-related attributes. Methods A total of 19 healthy volunteers, age 18-30, mean BMI 23.2 kg/m² participated in the study. Measurement of food and satiety-related perceptions with ten attributes was performed by using 10-unit graphic intensity scales during a 120 min period after the ingestion the sample. The attributes evaluated were satiety, hunger (unipolar and bipolar scale), appetite, fullness, desire to eat something/sweet/savoury/the sample food and thirst. The sample foods used were a beverage without fibre, a guar gum beverage, a wheat bran beverage, an oat β-glucan beverage and wheat bread was used as the control. The fibre content of the samples was 0 g (beverage without fibre), 2.4 g (wheat bread), 7.8 g (guar gum) or 10.5 g (wheat bran and oat β-glucan beverage) per 400 g/1,000 kJ portion. Results The area under curve (AUC) for perceived satiety was higher (169 vs. 83 cm min; t test P = 0.026) and the desire to eat was lower (AUC -179 vs. -83 cm min; t test P = 0.008) for the guar gum beverage as compared to the beverage without fibre. Also the beverage with oat β-glucan increased fullness and showed a trend of increasing perceived satiety and decreasing the desire to eat more than the beverage without fibre. Conclusions Our results support the idea that dietary fibre in beverages can enhance their perceived satiety and decrease the desire to eat more than a beverage without fibre.

Health claims on food products, which aim at informing the public about the health benefits of the product, represent one type of nutrition communication; the use of these is regulated by the European Union. This paper provides an overview of the research on health claims, including consumers’ perceptions of such claims and their intention to buy products that carry health-related claims. This is followed by a discussion on the results from some recent studies investigating public perceptions and willingness to use products with health claims. In these studies, claims are presented in the form of messages of different lengths, types, framing, with and without qualifying words and symbols. They also investigate how perceptions and intentions are affected by individual needs and product characteristics. Results show that adding health claims to products does increase their perceived healthiness. Claim structure was found to make a difference to perceptions, but its influence depended on the level of relevance, familiarity and individuals’ need for information. Further, the type of health benefit proposed and the base product used also affected perceptions of healthiness. The paper concludes that while healthiness perceptions relating to products with health claims may vary between men and women, old and young and between countries, the main factor influencing perceived healthiness and intention to buy a product with health claim is personal relevance.

Purpose Consumers can be an interesting source of knowledge if companies manage to attract them to an interactive process of new product development (NPD). The purpose of this paper is to investigate factors influencing consumers’ willingness to participate in NPD activities. Design/methodology/approach A survey with 1,038 respondents was held in Denmark. Food products for weight management were used as an example to further explore these issues and test the research hypotheses. Data were analysed by means of hierarchical regression analysis. Findings Results indicated that consumer innovativeness is a key factor to stimulate participation. An increase in either cognitive or emotional dimensions also encourages consumer interaction with the company. Weight perception and willingness to participate is moderated by age group. These findings can help managers to identify key segments when developing new food products for weight management. Originality/value This study has proposed and tested a model based on relevant literature and validated scales using a model generation approach to discuss motivations and factors that influence willingness to participate in NPD projects in the food sector.