The subjective nature of self-reported dietary intake assessment methods presents numerous challenges to obtaining accurate dietary intake and nutritional status. This limitation can be overcome by the use of dietary biomarkers, which are able to objectively assess dietary consumption (or exposure) without the bias of self-reported dietary intake errors. The need for dietary biomarkers was addressed by the Institute of Medicine, who recognized the lack of nutritional biomarkers as a knowledge gap requiring future research. The purpose of this article is to review existing literature on currently available dietary biomarkers, including novel biomarkers of specific foods and dietary components, and assess the validity, reliability and sensitivity of the markers. This review revealed several biomarkers in need of additional validation research; research is also needed to produce sensitive, specific, cost-effective and noninvasive dietary biomarkers. The emerging field of metabolomics may help to advance the development of food/nutrient biomarkers, yet advances in food metabolome databases are needed. The availability of biomarkers that estimate intake of specific foods and dietary components could greatly enhance nutritional research targeting compliance to national recommendations as well as direct associations with disease outcomes. More research is necessary to refine existing biomarkers by accounting for confounding factors, to establish new indicators of specific food intake, and to develop techniques that are cost-effective, noninvasive, rapid and accurate measures of nutritional status.

BackgroundAltering food store environments is a promising approach to encourage healthy product purchases by consumers to improve their diet quality and health. Food store owners and managers are intermediaries to ensure that environmental changes are enacted. Despite their role as gatekeepers to implement and sustain healthy food environment changes, no systematic review has been published that examines food store owner and manager (retailer) data. Thus a review of retailer information available within the expansive United States (US) food environment literature was the purpose of this research.MethodsThe PRISMA protocol was used. A search strategy, including published articles from years 1980–2017, was applied to six databases to locate relevant articles that addressed the perspective of food store retailers in the US. Data were extracted, organized, and agreed upon between two authors based on pre-designed constructs: (1) a social-ecological model to capture factors that influence retailer decision making; and (2) a marketing-mix and choice-architecture framework to examine perspectives of applied (or the prospective application of) strategies at the store-level. Study quality was assessed using quality criteria checklists for qualitative and quantitative research.ResultsThirty-one articles met inclusion criteria and most studies (n = 22) were qualitative and conducted in urban food stores (n = 23). Multiple social-ecological factors influenced retailer decision making and ability or willingness to use marketing-mix and choice-architecture strategies to improve consumers’ healthy choices to support dietary quality. These factors included: conflicting training outcomes to enhance retailers’ knowledge and skills (individual, n = 9); the importance of trust (interpersonal, n = 8); views about marketing-mix and choice-architecture strategies in the food environment (n = 25); consumer demand or demographics (community, n = 19); supplier and food store management variables (systems or sectors, n = 18); local and federal policy (n = 8); and support for community health (norms/values, n = 8).ConclusionsResearch partnerships can support favorable business and public health outcomes to align with retailers’ business models and available resources. A participatory and translational approach to food environment research will likely maximize public health impact. Urban and rural food store retailers are important actors for future research to inform the feasibility of store retailers to apply MMCA strategies that are profitable and promote health.Electronic supplementary materialThe online version of this article (10.1186/s12966-019-0767-8) contains supplementary material, which is available to authorized users.

Strategies to reduce food waste in school lunch should be researched and implemented.

SummaryThis review identified and adapted choice architecture frameworks to develop a novel framework that restaurant owners could use to promote healthy food environments for customers who currently overconsume products high in fat, sugar and sodium that increase their risk of obesity and diet-related noncommunicable diseases. This review was conducted in three steps and presented as a narrative summary to demonstrate a proof of concept.Step 1 was a systematic review of nudge or choice architecture frameworks used to categorize strategies that cue healthy behaviours in microenvironments. We searched nine electronic databases between January 2000 and December 2016 and identified 1,244 records. Inclusion criteria led to the selection of five choice architecture frameworks, of which three were adapted and combined with marketing mix principles to highlight eight strategies (i.e. place, profile, portion, pricing, promotion, healthy default picks, prompting or priming and proximity).Step 2 involved conducting a comprehensive evidence review between January 2006 and December 2016 to identify U.S. recommendations for the restaurant sector organized by strategy.Step 3 entailed developing 12 performance metrics for the eight strategies. This framework should be tested to determine its value to assist restaurant owners to promote and socially normalize healthy food environments to reduce obesity and non-communicable diseases.

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Objective: Due to a proliferation of measures for different components of the home environment related to childhood obesity, the purpose of the present systematic review was to examine these tools and the degree to which they can validly and reliably assess the home environment. Design: Relevant manuscripts published between 1998 and 2010 were obtained through electronic database searches and manual searches of reference lists. Manuscripts were included if the researchers reported on a measure of the home environment related to child eating and physical activity (PA) and childhood obesity and reported on at least one psychometric property. Results: Of the forty papers reviewed, 48 % discussed some aspect of parenting specific to food. Fifty-per cent of the manuscripts measured food availability/ accessibility, 18 % measured PA availability/accessibility, 20 % measured media availability/accessibility, 30 % focused on feeding style, 23 % focused on parenting related to PA and 20 % focused on parenting related to screen time. Conclusions: Many researchers chose to design new measures for their studies but often the items employed were brief and there was a lack of transparency in the psychometric properties. Many of the current measures of the home food and PA environment focus on one or two constructs; more comprehensive measures as well as short screeners guided by theoretical models are necessary to capture influences in the home on food and PA behaviours of children. Finally, the current measures of the home environment do not necessarily translate to specific subpopulations. Recommendations were made for future validation of measures in terms of appropriate psychometric testing. Keywords Child obesity Home environment Measurement PsychometricsThe prevalence and severity of childhood overweight have increased significantly in the past three decades (1)(2)(3) . Negative sequalae from being overweight during childhood include being at a higher risk for a number of chronic and acute conditions (4) as well as negative social and psychological outcomes (5) . The source for the majority of childhood obesity cases can be attributed to energy imbalance which has been linked to changes in the food and physical activity (PA) environments (6,7) . The home environment has been documented as one that can either facilitate or inhibit healthful eating and PA, and caregivers play a key role in the development of the social and physical environment within a household (8,9) . From a social environment perspective, caregivers serve as role models for PA, dietary and media behaviours and influence the child's health behaviours and weight status through parenting strategies and feeding styles (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21) . In addition, a child participates in more PA when a greater amount of space and active toys are available in the home (22,23) . Likewise, access to food items can impact consumption (24,25) . Similarly, when more screen opportunities are available, children are more likely to engage i...

WHAT'S KNOWN ON THIS SUBJECT:Research has shown that dishware size influences self-served portion sizes and meal intake in adults. In children, larger bowls led children to request more food, but whether larger dishware affects children' s self-served portions or intake at meals is not known. WHAT THIS STUDY ADDS:We assessed the effect of increasing dishware size on self-served portions and intake in young children. Larger plates and bowls resulted in larger self-served portions, and indirectly promoted greater intake, emphasizing the importance of age-appropriate dishware.abstract OBJECTIVES: Dishware size is thought to influence eating behaviors, but effects on children' s self-served portion sizes and intakes have not been studied. We aimed to evaluate whether larger dishware increased children' s self-served portion sizes and intake during meals. METHODS:A within-subjects experimental design was used to test the effects of dishware size (ie, plates and bowls) on children' s self-served portion sizes and intakes in a naturalistic setting. Subjects were predominantly African American elementary school-aged children (n = 42) observed on repeated occasions during school lunch. Children served themselves an entree and side dishes using either child-or adult-size dishware, which represented a 100% increase in the surface area of plates and volume of bowls across conditions. Condition order was randomly assigned and counterbalanced across 2 first-grade classrooms. Entrées of amorphous and unit form were evaluated on separate days. Fruit and vegetable side dishes were evaluated at each meal. Fixed portions of milk and bread were provided at each meal. RESULTS:Children served more energy (mean = 90.1 kcal, SE = 29.4 kcal) when using adult-size dishware. Adult-size dishware promoted energy intake indirectly, where every additional calorie served resulted in a 0.43-kcal increase in total energy intakes at lunch (t = 7.72, P = .001).CONCLUSIONS: Children served themselves more with larger plates and bowls and consumed nearly 50% of the calories that they served. This provides new evidence that children' s self-served portion sizes are influenced by size-related facets of their eating environments, which, in turn, may influence children' s energy intake. Pediatrics

The number of farmers' markets in the United States continues to grow, suggesting an increasing interest in community food systems. Yet, little conclusive research has been conducted to characterize farmers' market customers. The purpose of this literature review is to more definitively examine the current farmers' market consumer base established in published research studies. We explore demographic factors as well as motivations and barriers for farmers' markets shoppers. Based on current research, it is clear that an assortment of complex and interrelated factors influence an individual's choice to shop at farmers' markets and that a more consistent data gathering method is needed. A food system encompasses all people and processes related to food, including agricultural production, processing, packaging, distribution, marketing, consumption, and disposal. 1 In an effort to rethink the modern configuration (ie, conventional agriculture), a growing number of individuals are engaging in more localized and community-based food systems (or what is often referred to as a foodshed) in lieu of a larger, more industrialized