Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Dossier Veranderend eetpatroon
Mols, H. ; Kortstee, H.J.M. ; Warnaar, M. ; Methorst, B. ; Sijtsema, S.J. ; Dagevos, H. ; Onwezen, M.C. ; Ingenbleek, P.T.M. ; Genderen, R.A. van - \ 2017
Wageningen : Groen Kennisnet
nutrition - feeding habits - consumers - consumption - proteins - health
De trends in voedselland volgen elkaar in snel tempo op. Gezond, duurzaam, natuurlijk, gemak, out of home, fairtrade zijn trenditems die we in kranten, vakbladen en actualiteitenrubrieken, vlogs en blogs dagelijks kunnen ervaren.
Maar leidt het ook tot gewenste veranderingen in de voedselkeuze van de consument naar een gezonder en duurzamer eetpatroon.
Typering van consumenten geeft de groenteketen een houvast : betrokken consumenten proeven beter
Labrie, Caroline - \ 2016
consumer surveys - consumption - fruit - vegetables - consumer preferences - supply chain management
How to pursue quality of life
Antonides, G. - \ 2016
Wageningen University, Wageningen UR - ISBN 9789462573734 - 28 p.
well-being - income - consumption - society - western world - quality of life - welzijn - inkomen - consumptie - samenleving - westerse wereld - kwaliteit van het leven
Well-being, happiness or quality of life is a desirable life goal which can be pursued in many different ways.
Body and Mind: Mindfulness Helps Consumers to Compensate for Prior Food Intake by Enhancing the Responsiveness to Physiological Cues
Veer, E. van de; Herpen, E. van; Trijp, J.C.M. van - \ 2016
Journal of Consumer Research 42 (2016)5. - ISSN 0093-5301 - p. 783 - 803.
mindfulness - food - consumption - compensation - hunger - Satiety
External cues regularly override physiological cues in food consumption resulting in mindless eating. In a series of experiments, this study shows that mindfulness, an enhanced attention state, improves consumers’ reliance on physiological cues across consumption episodes. Consumers who are chronically high in mindfulness (study 1) or who receive a short mindfulness training that focuses attention on the body (study 2) compensate more for previous food intake in their subsequent consumption. Moreover, after a mindful body meditation, consumers are more aware of physiological cues that develop after consumption (study 3), rather than of the amount they have previously eaten (study 4). Furthermore, we argue and show that the focus of mindfulness matters: mindfulness trainings that focus attention on the environment or on the body similarly elicit state mindfulness, but only mindful attention with a focus on the body stimulates compensation for previous consumption and awareness of satiety cues. Finally, practicing mindfulness and specifically paying mindful attention to body sensations is related to a more constant body weight in a sample of the general population (study 5).
Crisis, Inequality and Consumption - a Dutch Perspective
Wahlen, S. - \ 2016
Italian Sociological Review 6 (2016)1. - ISSN 2239-8589 - p. 113 - 129.
consumption - social inequality - crisis
Inequalities have been exacerbating in the Netherlands since the economic crisis hit ground in 2008, with poverty increasing substantially. The amount of the Dutch population living under the poverty line increased from 7,4 % in 2010 to 10,3 % in 2013. Different types of household are affected: single parent and one-person households, as well as those with migration background. Moreover, life course influences are inherent in the rising amount of children and of elderly in poverty. The aim of this paper is to provide empirical evidence on how new inequalities impact the consumption of food, housing and mobility. Inequalities in food consumption are manifested in the growing amount of food packages handed out by foodbanks increased by 30 % (2012-2013). Housing cost makes up a substantial share of the total expenditure for consumers with lower income and social inequalities become visible in the increasing late payments on mortgages as well as on energy and water consumption. Mobility is of interest, because low-income households appear to cut expenditure on mobility, considering the proportion low-income households spent on mobility is lower as households above the poverty line (7 and 11 % respectively). This paper sheds empirical light on consumption inequalities by providing quantitative empirical evidence. A combination of statistical data is analysed. Life-course influences thereby indicate different peculiarities of consumption inequalities in the types of households affected by poverty.
Sustainable consumption and marketing
Dam, Y.K. van - \ 2016
University. Promotor(en): Hans van Trijp. - Wageningen : Wageningen University - ISBN 9789462576490 - 176 p.
consumer behaviour - marketing - consumption - household consumption - market research - decision making - behavioural changes - behaviour - economic psychology - sustainability - consumentengedrag - consumptie - huishoudelijke consumptie - marktonderzoek - besluitvorming - gedragsveranderingen - gedrag - economische psychologie - duurzaamheid (sustainability)

Sustainable development in global food markets is hindered by the discrepancy between positive consumer attitudes towards sustainable development or sustainability and the lack of corresponding sustainable consumption by a majority of consumers. Apparently for many (light user) consumers the ‘importance’ of ‘sustainability’ has a meaning that is not directly translated into purchases.

The cognitive and motivational perceptual structures of sustainability among light users of sustainable products are empirically compared to the Brundlandt definition (needs of future generations) and the Triple-P-Baseline (people, planet, prosperity) definition of sustainability. Results show that light users cognitively can distinguish between the social and temporal dimensions of the Brundlandt definition, as well as the people, planet and prosperity dimensions of the Triple-P definition of sustainability. In the motivational structure of light users of sustainable products, all attributes that do not offer direct and personal benefits are collapsed into a single dimension. This single dimension explains purchases more parsimoniously than a more complex structure, and is itself explained by a set of psychographic predictors that appears to be related to identity.

Perceived relevance and determinance are two distinct constructs, underlying the overall concept of attribute importance. Attribute relevance is commonly measured by self-reported importance in a Likert type scale. In order to measure attribute determinance a survey based measure is developed. In an empirical survey (N=1543) determinance of sustainability related product attributes is measured through a set of forced choice items and contrasted to self-reported relevance of those attributes. In line with expectations, a priori determinance predicts sustainable food choice more efficiently than perceived relevance. Determinance of sustainability related product attributes can be predicted by future temporal orientation, independently of relevance of these attributes.

These results support an interpretation of the attitude to behaviour gap in terms of construal level theory, and this theory allows for testable hypotheses on low construal motivators that should induce light users to purchase sustainable products. Sustainable consumption is viewed as a dilemma between choices for immediate (low construal) benefits and choices that avoid long-term collective (high construal) harm.

Identity theory suggests that self-confirmation could be a driving motive behind the performance of norm-congruent sustainable behaviour. Through identity people may acquire the intrinsic motivation to carry out pro-environmental behaviour. This view is tested in two empirical studies in The Netherlands. The first study shows that sustainable identity predicts sustainable preference, and that the effect of identity on preference is partly mediated by self-confirmation motives. The second study confirms that sustainable identity influences the determinance of sustainable attributes, and through this determinance has an impact on sustainable product choice. This effect is partly mediated by stated relevance of these attributes.

Sustainable certification signals positive sustainable quality of a product, but fail to create massive demand for such products. Based on regulatory focus theory and prospect theory it is argued that negative signalling of low sustainable quality would have a stronger effect on the adoption of sustainable products than the current positive signalling of high sustainable quality. The effects of positive vs. negative signalling of high vs. low sustainable quality on attitude and preference formation are tested in three experimental studies. Results show (1) that negative labelling has a larger effect on attitude and preference than positive labelling, (2) that the effect of labelling is enhanced by regulatory fit, and (3) that the effect of labelling is mediated by personal norms, whereas any additional direct effect of environmental concern on preference formation is negligible.

Overall the present thesis suggests that the attitude to behaviour gap in sustainable consumption can be explained as a conflict between high construal motives for the abstract and distant goals of sustainable development and the low construal motives that drive daily consumption. Activating low construal motives for sustainable consumption, be it intrinsic motives to affirm a sustainable self-concept or loss aversion motives, increases sustainable consumer behaviour. Applying these insights to marketing decision making opens a new line of research into the individual, corporate, and institutional drivers that may contribute to the sustainable development of global food markets.

International Journal of Consumer Studies (Journal)
Wahlen, Stefan - \ 2015
International Journal of Consumer Studies (2015). - ISSN 1470-6423
lifestyle - consumption - social movements
Lifestyle, Consumption Social Movements
Crisis, social inequality and consumption – a Dutch perspective
Wahlen, S. - \ 2015
consumption - crisis
Inequalities have been exacerbating in the Netherlands since the economic crisis hit ground in 2008, with poverty increasing substantially. The amount of the Dutch population living under the poverty line increased from 7,4 % in 2010 to 10,3 % in 2013. Different types of household are affected: single parent and one-person households, as well as those with migration background. Moreover, life course influences are inherent in the rising amount of children and of elderly in poverty. The aim of this paper is to investigate how new inequalities impact the consumption of food, housing and mobility across the life course. Inequalities in food consumption are manifested in the growing amount of food packages handed out by foodbanks increased by 30 % (2012-2013). Housing cost makes up a substantial share of the total expenditure for consumers with lower income and social inequalities become visible in the increasing late payments on mortgages as well as on energy and water consumption. Mobility is of interest, because low-income households appear to cut expenditure on mobility, considering the proportion low-income households spent on mobility is lower as households above the poverty line (7 and 11 % respectively). This paper sheds empirical light on consumption inequalities by providing quantitative empirical evidence. A combination of statistical data is analysed, such as budget surveys and the consumer confidence survey of Statistics Netherlands. Life-course influences thereby indicate different peculiarities of consumption inequalities in the types of households affected by poverty.
Portraying the sustainable consumer : exploring sustainable food consumption using a lifestyle segmentation approach
Verain, M.C.D. - \ 2015
University. Promotor(en): Gerrit Antonides, co-promotor(en): Siet Sijtsema; Hans Dagevos. - Wageningen : Wageningen University - ISBN 9789462575790 - 220
consumenten - consumptie - voedselconsumptie - voedsel - duurzaamheid (sustainability) - levensstijl - consumentengedrag - consumers - consumption - food consumption - food - sustainability - lifestyle - consumer behaviour
We have to eat, right? : food safety concerns and shopping for daily vegetables in modernizing Vietnam
Wertheim-Heck, S.C.O. - \ 2015
University. Promotor(en): Gert Spaargaren. - Wageningen : Wageningen University - ISBN 9789462575745 - 241
voedselveiligheid - voedselkwaliteit - groenten - consumenten - consumptiepatronen - consumptie - milieubeleid - vietnam - zuidoost-azië - food safety - food quality - vegetables - consumers - consumption patterns - consumption - environmental policy - south east asia

This thesis analyses how people during everyday life confront real food safety risks that are difficult to influence and come to grips with and focuses on food safety risks in modernizing Vietnam.

Over the past 40 years Vietnam has developed from war torn country with a highly centralized planned economy ranking among the world’s most impoverished nations to a socialist-oriented market economic power house, currently ranking highest among the world’s largest growth economies. Throughout this transition Vietnam has struggled with food security in which concerns have shifted from ‘is there enough to eat?’ to ‘is it safe to eat?’. Food safety has become a major social and political issue in Vietnam. Urbanization puts pressure on the provision of daily fresh food. The distanciation of production-consumption relationships and the intensification of cultivation methods, as a response to growing urban demand with a declining farmland acreage, results in regular food safety incidents related to the inappropriate use of chemicals in agricultural production. The wide media coverage of such incidences has resulted in food safety being the ‘number one consumer concern’ in Vietnam.

To improve food safety and to restore trust among consumers, authorities in Vietnam, as in other parts of Asia, promulgate policies that focus on the modernization of the food retail system. Western models of consumption and retailing strongly influence these retail modernization policies, placing supermarket development at the core of strategies. The retail modernization policies are designed to influence choices and persuade consumers to change their behavior based on the idea that consumers make rational choices, assuming that food safety concerns will drive consumers into supermarket channels. However, despite consumer food safety concerns, in the performance of everyday life, consumers don’t ‘en masse’ adopt the policy enabled risk-reducing alternative of supermarkets. Traditional channels such as wet markets continue to dominate in the daily fresh vegetable purchasing practices. This phenomenon is observed across the Asian continent. As it turns out, transitions in the food buying practices of Asian consumers are not so easily established.

This thesis addresses consumption as a social practice. The application of social practice based approaches to the analysis of consumption started around the turn of the century and has since gained importance in thinking about food system changes with a strong focus on western developed societies. By applying the research on the specific case of shopping for vegetables in Vietnam, this thesis exemplifies how a social practices approach is relevant beyond OECD countries. In studying the relation and dynamics between local cultural tradition and advanced globalization at the consumption junction, this thesis uncovers how practices of shopping for vegetables and their inherent food safety dynamics emerge, evolve, or die out within the rapidly transforming urban context of Hanoi, Vietnam. This thesis is concerned with the question:

How do ordinary people in Vietnam confront food safety risks and why and how they do, or do not adopt alternative practices, like modern retail shopping, to respond to their increasing concerns about the fresh-food made available to them?

The conducted research and its findings are described in this thesis over six chapters. It starts with an introductory chapter 1, followed by four distinct, though coherent, empirical research chapters (chapter 2-5). Each of these chapters delivers a complementary understanding on the everyday practice of shopping for vegetables in the transformative context of Vietnam. Combined these empirical research chapters provide an understanding of how practices of shopping for vegetables develop, are sustained and/or die out within a rapidly transforming urban context. The thesis ends with a concluding chapter 6.

The first chapter describes the research problem, the theoretical framing of the problem and the research questions. The chapter explicates why this thesis takes a social practices theory based research approach. Exploring the middle ground of two interlinked debates - a debate with extreme positions in retail development and a debate on how to bring about behavioral change, - it is discussed that a social practices approach is relevant for obtaining understandings of everyday life, because of its non-individualist perspective, its empirical focus on habitual activity, and its inclusion of the local context. Next, the chapter outlines the conceptual approach in which relations between provision systems on the one hand and consumers on the other are mediated at the food retailing sites. By giving primacy to neither agency nor structure, it is discussed how practices based research, might deliver an understanding of the relation and dynamics between local cultural tradition and advanced globalisation. It than elaborates on the novel programmatic methodological approach of shifting perspectives - zooming in on situated practices and zooming out through a historical mapping of a portfolio of embedded practices - that allow the detection of the dynamics in situated habitual and contextually constrained activities, as well as longer term transformations of practices over time. Chapter 1 concludes with an exposition of the mix of methods applied.

Chapter 2 investigates which characteristics of the dominant and persistent practice of shopping at wet markets account for its continued reproduction and addresses the question of how food safety concerns are confronted within this well–established practice. Taking a rural city not yet touched by retail modernization as the research setting, this chapter presents in-depth empirical research insights on interactions at wet-market from the perspective of both sales persons and citizen-consumers. This chapter shows that food safety is a well-recognized dilemma by both providers and consumers of vegetables, but that food safety concerns are not the principal factor in determining the purchasing practices. Shopping at wet markets is a highly routinized taken for granted activity and food safety concerns only become prominent within this habitual shopping setting. Deploying specific heuristics for vendor and product selection, food safety is shown to be continuously reproduced along pre-given lines. As long as the existing, ‘practical’ repertoire of food safety heuristics deployed by consumers suffices in counter balancing their anxieties, consumers adhere to their established food shopping routines of shopping at wet markets.

Chapter 3 explores the persistence of shopping for vegetables at informal, uncontrolled, and unhygienic street markets in the context of advancing retail modernization in urban Hanoi. Government induced policies aim at replacing wet markets by supermarkets and therewith enforce breaks with well-established routines. However, although supermarkets are recognized and valued as safe vegetable retailing sites, they are only marginally successful in attracting daily vegetables consumers. This chapter addresses the question of what context specific processes and circumstances account for the continued reproduction of shopping at street markets that do not offer formal food safety guarantees. The empirical study of vegetable shopping practices at six different street markets, reveals how consumers handle food safety concerns in combination with other choices about where and when to buy. It shows how and why daily routines are time-spatial constrained. Where and how to buy vegetables is importantly shaped by other activities in daily life. The empirical research illustrates that temporal and spatial dimensions of practices in contemporary daily life in Hanoi constitute a reinforcing mechanism for the persistence of uncontrolled and unhygienic street markets, rather than the uptake of supermarkets. This chapter points out that food safety policies and interventions that do not take into consideration the existing everyday consumption practices, might fail to address acute food safety issues.

Chapter 4 assesses the extent of the outreach of modernized retail formats in terms of who benefits, who is excluded and what context specific processes and circumstances influence the uptake of modified or modern retail formats by different social groups. A practice realist perspective is demonstrated to be relevant for addressing outreach and social inclusion and understanding how policy interventions play out in practice. On the basis of a collective case study of six distinct policy induced retail modernization interventions, this chapter illustrates the emerging and on-going process of food retail transformation. This approach exposes how and why similar supermarket interventions can yield contrasting intermediate outcomes when they do not accommodate for differences in shopper population and do not adapt to variations in the urban conditions. The current one-dimensional, supermarket oriented, retail modernization policy that aims to reduce the exposure to uncertified ‘unsafe’ food, is shown to lead to the exclusion of a large proportion of the population. This chapter points out the importance for Vietnamese policymakers to consider the risk of social deprivation and to explicitly reflect on the unanticipated consequences of the normative direction of their interventions in food provision. This chapter indicates that reaching a more diverse population requires more flexible policies that allow for malleability in response to local conditions.

Chapter 5 addresses the questions: what practices of purchasing or appropriating fresh vegetables do exist in contemporary Vietnam; how do they relate to food safety concerns and dynamics; why did they emerge and evolve during the past 40 years; and what factors are important in explaining the dynamics of change in the overall set of shopping practices? Deploying a practice historical perspective, this chapter unravels the complex evolving relationships between the local and the global as they can be read from the ways in which Vietnamese consumers deal with food safety risks when shopping for fresh food, by analyzing a portfolio of shopping practices against the background of historical changes over the period 1975-2015. Discussing the way in which six situated social practices are embedded in the broader set of food appropriation practices, this chapter portrays how practices show consistency in change over time, influenced by transformations in their environment, in which practices are interrelated with other practices in daily life beyond the act of shopping for food and beyond the domain of food. Further this chapter demonstrates how food safety related trust mechanisms as deployed by Vietnamese consumers show patterns of hybridization of personalized trust with abstract guidance systems. The historical approach provides insights on why shopping at supermarkets is not just currently still limited in recruiting practitioners. Also looking forward, it is not reasonable to expect homogenization in food retail system transformation.

This thesis concludes with chapter 6 which addresses the question of what lessons can be learned from social practices research in assessing the present and future role of supermarkets and the accompanying food safety strategies, which imply the de- and re-routinization of well-established contemporary practices of shopping for fresh-food. Along the four empirical research chapters, it first sets out to answer the research questions. Next it elaborates on the theoretical and methodological approach. The chapter describes the iterative research process and depicts how methodological variance can be used as a strength when applied as an intelligible program of shifting perspectives - zooming in and out on practices - and a mix of methods. It is pointed out that although practices based approaches are criticized on their complexity and ambiguity, the approach used in this thesis is proven to deliver concrete results and might be useful in similar cases. Lastly, this concluding chapter discusses how practices based perspectives have the potential to inform a more versatile and amenable portfolio of public regulations and resources when striving for amelioration in food provision, not only in Vietnam, but across the Asian continent.

This thesis demonstrates how changes in infrastructures are not sufficient for changing practices and thus warns against making food safety policies strongly dependent on a single supermarket model. Instead of putting all strategic resources on one strategy, efforts of integration and mutual adaptation of modern and traditional structures could be considered. Pursuing a trend of hybridization prevents that consumers have to break with long established routines in an isolated, radical way.

Nutritional impact of sodium reduction strategies on sodium intake from processed foods
Hendriksen, M.A.H. ; Verkaik-Kloosterman, J. ; Noort, M.W.J. ; Raaij, J.M.A. van - \ 2015
European Journal of Clinical Nutrition 69 (2015). - ISSN 0954-3007 - p. 805 - 810.
salt reduction - choice questionnaire - consumption - bread
Background/objectives: Sodium intake in the Netherlands is substantially above the recommended intake of 2400¿mg/day. This study aimed to estimate the effect of two sodium reduction strategies, that is, modification of the composition of industrially processed foods toward the technologically feasible minimum level or alteration of consumers’ behavior on sodium intake in the Netherlands. Subjects/methods: Data from the Dutch National Food Consumption Survey (2007–2010) and the Food Composition Table (2011) were used to estimate the current sodium intake. In the first scenario, levels in processed foods were reduced toward their technologically feasible minimum level (sodium reduction in processed foods scenario). The minimum feasible levels were based on literature searches or expert judgment. In the second scenario, foods consumed were divided into similar food (sub)groups. Subsequently, foods were replaced by low-sodium alternatives (substitution of processed foods scenario). Sodium intake from foods was calculated based on the mean of two observation days for the current food consumption pattern and the scenarios. Results: Sodium levels of processed foods could be reduced in most food groups by 50%, and this may reduce median sodium intake from foods by 38% (from 3042 to 1886¿mg/day in adult men). Substitution of foods may reduce sodium intake by 47% (from 3042 to 1627¿mg/day in adult men), owing to many low-sodium alternatives within food groups. Conclusions: In the Netherlands, reduction of sodium intake by modification of food composition or by alteration of behavior may substantially reduce the median sodium intake from foods below the recommended sodium intake.
Greening production and consumption: the case of the appliance and dairy industries in Thailand
Thongplew, N. - \ 2015
University. Promotor(en): Gert Spaargaren, co-promotor(en): Kris van Koppen. - Wageningen : Wageningen University - ISBN 9789462574397 - 176
duurzaamheid (sustainability) - consumptie - productie - consumenten - milieubeleid - zuivelindustrie - toestellen - computerwetenschappen - engineering - thailand - sustainability - consumption - production - consumers - environmental policy - dairy industry - appliances - computer sciences


Natapol Thongplew

Thesis title: Greening production and consumption: The case of the appliance and dairy industries in Thailand

This research looked into the greening of the appliance and dairy industries in globalizing Thailand from a product chain perspective. It studied roles and strategies of appliance and dairy companies in greening consumption with an explicit involvement of consumers. This research finds that appliance and diary have increasingly attempted to engage Thai consumers in buying and using more sustainable products. To do so, companies employ different consumer-oriented strategies, including providing environmental information; however, they do not yet have a full-fledged consumer-oriented strategy to activate and engage (silent green) consumers. The study summarizes that appliance and diary companies in Thailand can advance their consumer-oriented strategies for better engaging Thai consumers (with green products and green markets) by acknowledging the role of consumers as citizens, recognizing emerging sustainable practices and lifestyles of citizens, and organizing consumer groups.

Social proof in the supermarket: Promoting healthy choices under low self-control conditions
Salmon, S.J. ; Vet, E. de; Adriaanse, M.A. ; Fennis, B.M. ; Veltkamp, M. ; Ridder, D.T.D. de - \ 2015
Food Quality and Preference 45 (2015). - ISSN 0950-3293 - p. 113 - 120.
limited-resource account - ego depletion - physical-activity - decision-making - strength model - united-states - food choices - behavior - consumption - motivation
Under low self-control conditions, people often favor tempting but unhealthy food products. Instead of fighting against low self-control to reduce unhealthy food choices, we aim to demonstrate in a field study that heuristic decision tendencies can be exploited under these conditions. To do so a healthy product was associated with a social proof heuristic, referring to the tendency to adopt the option preferred by others. A healthy low-fat cheese was promoted with banners stating it was the most sold cheese in that supermarket. A state of low self-control was experimentally induced in the supermarket, and compared to a high self-control condition. Participants low in self-control were more likely to buy the low-fat cheese, when this product was associated with the social proof heuristic, compared to when it was not. This suggests that under low self-control conditions, presenting social proof cues may benefit healthy purchases.
The relationship between fermented food intake and mortality risk in the European Prospective Investigation into Cancer and Nutrition-Netherlands cohort
Praagman, J. ; Dalmeijer, G.W. ; Schouw, Y.T. van der; Soedamah-Muthu, S.S. ; Verschuren, W.M.M. ; Bueno-de Mesquita, H.B. ; Geleijnse, J.M. ; Beulens, J.W.J. - \ 2015
British Journal of Nutrition 113 (2015). - ISSN 0007-1145 - p. 498 - 506.
coronary-heart-disease - lactic-acid bacteria - dairy-products - colorectal-cancer - consumption - stroke - metaanalysis - questionnaire - menaquinone - men
The objective of the present study was to investigate the relationship between total and subtypes of bacterial fermented food intake (dairy products, cheese, vegetables and meat) and mortality due to all causes, total cancer and CVD. From the European Prospective Investigation into Cancer and Nutrition-Netherlands cohort, 34 409 Dutch men and women, aged 20–70 years who were free from CVD or cancer at baseline, were included. Baseline intakes of total and subtypes of fermented foods were measured with a validated FFQ. Data on the incidence and causes of death were obtained from the national mortality register. Cox proportional hazards models were used to analyse mortality in relation to the quartiles of fermented food intake. After a mean follow-up of 15 (sd 2·5) years, 2436 deaths occurred (1216 from cancer and 727 from CVD). After adjustment for age, sex, total energy intake, physical activity, education level, hypertension, smoking habit, BMI, and intakes of fruit, vegetables and alcohol, total fermented food intake was not found to be associated with mortality due to all causes (hazard ratio upper v. lowest quartile (HRQ4 v. Q1) 1·00, 95 % CI 0·88, 1·13), cancer (HRQ4 v. Q1 1·02, 95 % CI 0·86, 1·21) or CVD (HRQ4 v. Q1 1·04, 95 % CI 0·83, 1·30). Bacterial fermented foods mainly consisted of fermented dairy foods (78 %) and cheese (16 %). None of the subtypes of fermented foods was consistently related to mortality, except for cheese which was moderately inversely associated with CVD mortality, and particularly stroke mortality (HRQ4 v. Q1 0·59, 95 % CI 0·38, 0·92, Ptrend= 0·046). In conclusion, the present study provides no strong evidence that intake of fermented foods, particularly fermented dairy foods, is associated with mortality.
Prepregnancy dietary patterns and risk of developing hypertensive disorders of pregnancy: results from the Australian Longitudinal Study on Women’s Health
Schoenaker, D.A.J.M. ; Soedamah-Muthu, S.S. ; Callaway, L.K. ; Mishra, G.D. - \ 2015
American Journal of Clinical Nutrition 102 (2015)1. - ISSN 0002-9165 - p. 94 - 101.
coronary-heart-disease - cardiovascular-disease - mediterranean diet - gestational hypertension - preeclampsia - metaanalysis - consumption - cohort - supplementation - prevention
Background: Hypertensive disorders of pregnancy (HDPs), including gestational hypertension and pre-eclampsia, are common obstetric complications associated with adverse health outcomes for the mother and child. It remains unclear how dietary intake can influence HDP risk. Objective: We investigated associations between prepregnancy dietary patterns and risk of HDPs. Design: We selected 3582 women participating in the Australian Longitudinal Study on Women's Health, which is an observational population-based study. Women were not pregnant at baseline in 2003 and reported at least one live birth between 2003 and 2012. Diet was assessed by using a validated 101-item food-frequency questionnaire in 2003, and factor analysis was used to identify dietary patterns. HDPs were assessed by using the question, "Were you diagnosed or treated for hypertension during pregnancy?" Generalized estimating equation models were used to estimate RRs (95% CIs) adjusted for dietary, reproductive, sociodemographic, and lifestyle factors. Results: During 9 y of follow-up of 3582 women, 305 women (8.5%) reported a first diagnosis of HDPs in 6149 pregnancies. We identified 4 dietary patterns labeled as meat, high-fat, and sugar; Mediterranean-style; fruit and low-fat dairy; and cooked vegetables. In the adjusted model, the meat, high-fat, and sugar, fruit and low-fat dairy, and cooked vegetable dietary patterns were not associated with HDP risk. The Mediterranean-style dietary pattern (characterized by vegetables, legumes, nuts, tofu, rice, pasta, rye bread, red wine, and fish) was inversely associated with risk of developing HDPs (quartile 4 compared with quartile 1: RR, 0.58; 95% CI, 0.42, 0.81). Conclusions: In this population-based study of Australian women, we observed an independent protective dose-response association between prepregnancy consumption of a Mediterranean-style dietary pattern and HDP risk. Additional studies are recommended to confirm our findings by prospectively examining whether the implementation of the Mediterranean-style dietary pattern before pregnancy has a role in the prevention of HDPs.
Patients undergoing elective coronary artery bypass grafting exhibit poor pre-operative intakes of fruit, vegetables, dietary fibre, fish and vtiman D
Ruiz-Nunez, B. ; Hurk, Y.A.C. van den; Vries, J.H.M. de - \ 2015
British Journal of Nutrition 113 (2015). - ISSN 0007-1145 - p. 1466 - 1476.
cardiovascular-disease risk - low-grade inflammation - heart-disease - fatty-acids - eicosapentaenoic acid - gut microbiota - brain-function - life-style - metaanalysis - consumption
CHD may ensue from chronic systemic low-grade inflammation. Diet is a modifiable risk factor for both, and its optimisation may reduce post-operative mortality, atrial fibrillation and cognitive decline. In the present study, we investigated the usual dietary intakes of patients undergoing elective coronary artery bypass grafting (CABG), emphasising on food groups and nutrients with putative roles in the inflammatory/anti-inflammatory balance. From November 2012 to April 2013, we approached ninety-three consecutive patients (80 % men) undergoing elective CABG. Of these, fifty-five were finally included (84 % men, median age 69 years; range 46–84 years). The median BMI was 27 (range 18–36) kg/m2. The dietary intake items were fruits (median 181 g/d; range 0–433 g/d), vegetables (median 115 g/d; range 0–303 g/d), dietary fibre (median 22 g/d; range 9–45 g/d), EPA+DHA (median 0·14 g/d; range 0·01–1·06 g/d), vitamin D (median 4·9 µg/d; range 1·9–11·2 µg/d), saturated fat (median 13·1 % of energy (E%); range 9–23 E%) and linoleic acid (LA; median 6·3 E%; range 1·9–11·3 E%). The percentages of patients with dietary intakes below recommendations were 62 % (fruits; recommendation 200 g/d), 87 % (vegetables; recommendation 150–200 g/d), 73 % (dietary fibre; recommendation 30–45 g/d), 91 % (EPA+DHA; recommendation 0·45 g/d), 98 % (vitamin D; recommendation 10–20 µg/d) and 13 % (LA; recommendation 5–10 E%). The percentages of patients with dietary intakes above recommendations were 95 % (saturated fat; recommendation <10 E%) and 7 % (LA). The dietary intakes of patients proved comparable with the average nutritional intake of the age- and sex-matched healthy Dutch population. These unbalanced pre-operative diets may put them at risk of unfavourable surgical outcomes, since they promote a pro-inflammatory state. We conclude that there is an urgent need for intervention trials aiming at rapid improvement of their diets to reduce peri-operative risks.
Consumer-Related Food Waste: Causes and Potential for Action
Aschemann-Witzel, J. ; Hooge, I.E. de; Amani, P. ; Bech-Larsen, T. ; Oostindjer, M. - \ 2015
Sustainability 7 (2015). - ISSN 2071-1050 - p. 6457 - 6477.
climate-change - behavior - consumption - households - separation - emissions - knowledge - attitude - impacts - system
In the past decade, food waste has received increased attention on both academic and societal levels. As a cause of negative economic, environmental and social effects, food waste is considered to be one of the sustainability issues that needs to be addressed. In developed countries, consumers are one of the biggest sources of food waste. To successfully reduce consumer-related food waste, it is necessary to have a clear understanding of the factors influencing food waste-related consumer perceptions and behaviors. The present paper presents the results of a literature review and expert interviews on factors causing consumer-related food waste in households and supply chains. Results show that consumers’ motivation to avoid food waste, their management skills of food provisioning and food handling and their trade-offs between priorities have an extensive influence on their food waste behaviors. We identify actions that governments, societal stakeholders and retailers can undertake to reduce consumer-related food waste, highlighting that synergistic actions between all parties are most promising. Further research should focus on exploring specific food waste contexts and interactions more in-depth. Experiments and interventions in particular can contribute to a shift from analysis to solutions.
Appropriateness, acceptance and sensory preferences based on visual information: A web-based survey on meat substitutes in a meal context
Elzerman, J.E. ; Hoek, A.C. ; Boekel, T. van; Luning, P.A. - \ 2015
Food Quality and Preference 42 (2015). - ISSN 0950-3293 - p. 56 - 65.
food acceptability - unfamiliar foods - future - expectations - consumption - neophobia - familiar - insects - liking
The aim of this study was to investigate the appropriateness, attractiveness, use-intention and (un)desirable sensory properties of meat substitutes in different dishes based only on visual information. A web-based survey was developed to let consumers assess the use of meat substitutes in different dishes. The survey consisted of 38 key questions with subdivisions and was completed by 251 respondents. Six different dishes (spaghetti, rice, wrap, pizza, pasta salad, and soup) were rated for their appropriateness for the use of meat substitutes. Subsequently, appropriateness, attractiveness, and use-intention were rated based on photographs of the six dishes prepared with meat substitutes that differed in shape and appearance. Respondents also had to indicate (un)desirable sensory properties of meat substitutes for every dish. Spaghetti, rice and wrap were more appropriate for the use of meat substitutes than the other dishes. The most appropriate meat substitute–meal combinations were those that are similar to common Dutch meal combinations (e.g. spaghetti with mince and rice with pieces). Attractiveness and intention scores were in line with the appropriateness scores. Furthermore, we found that current users of meat substitutes and younger respondents gave higher appropriateness ratings. This study demonstrates that appropriateness of meat substitutes in a dish is related to attractiveness and use-intention and that meal context should be taken into account in the development of new meat substitutes.
Influence of choice on vegetable intake in children: an in-home study
Wild, V.W.T. de; Graaf, C. de; Boshuizen, H.C. ; Jager, G. - \ 2015
Appetite 91 (2015). - ISSN 0195-6663 - p. 1 - 6.
portion size - preschool-children - european countries - young-children - flavor-flavor - mere exposure - fruit - consumption - increases - acceptance
Children's vegetable consumption is still far below that recommended, and stimulating their intake is a challenge for caregivers. The objective of this study was to investigate whether choice-offering is an effective strategy to increase children's vegetable intake in an in-home situation. Seventy children (mean age 3.7; SD 1) randomly assigned to a choice or a no-choice condition, were exposed 12 times to six familiar target vegetables at home during dinner. In the choice group, two selected vegetables were offered each time, whereas the no-choice group only received one vegetable. Vegetable intake was measured by weighing children's plates before and after dinner. A mixed linear model with age, gender, and baseline vegetable liking as covariates was used to compare intake between the choice and the no-choice group. Mixed linear model analysis yielded estimated means for vegetable intake of 48.5¿g +/- 30 in the no-choice group and 57.7¿g¿+/- 31 for the choice group (P¿=¿0.09). In addition, baseline vegetable liking (P¿
Exergetic comparison of food waste valorization in industrial bread production
Zisopoulos, F.K. ; Moejes, S.N. ; Rossier Miranda, F.J. ; Goot, A.J. van der; Boom, R.M. - \ 2015
Energy 82 (2015). - ISSN 0360-5442 - p. 640 - 649.
sustainability assessment - energy - consumption - transport - dryer
This study compares the thermodynamic performance of three industrial bread production chains: one that generates food waste, one that avoids food waste generation, and one that reworks food waste to produce new bread. The chemical exergy flows were found to be much larger than the physical exergy consumed in all the industrial bread chains studied. The par-baked brown bun production chain had the best thermodynamic performance because of the highest rational exergetic efficiency (71.2%), the lowest specific exergy losses (5.4 MJ/kg brown bun), and the almost lowest cumulative exergy losses (4768 MJ/1000 kg of dough processed). However, recycling of bread waste is also exergetically efficient when the total fermented surplus is utilizable. Clearly, preventing material losses (i.e. utilizing raw materials maximally) improves the exergetic efficiency of industrial bread chains. In addition, most of the physical (non-material related) exergy losses occurred at the baking, cooling and freezing steps. Consequently, any additional improvement in industrial bread production should focus on the design of thermodynamically efficient baking and cooling processes, and on the use of technologies throughout the chain that consume the lowest possible physical exergy.
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