A Cooking-Based Intervention Promotes Gluten-Free Diet Adherence and Quality of Life for Adults with Celiac Disease.

Current treatment for celiac disease (CD) requires a life-long gluten-free diet (GFD).1 Among the top challenges are eating outside the home2 and over-reliance on processed foods, which are often high-fat, low-fiber, and high-sugar.3 Home cooking is a GFD management strategy that addresses both. Research not specific to CD suggests a variety of positive outcomes related to home cooking: healthier dietary pattern, positive self-management behaviors (eg, improved glycosylated hemoglobin and cholesterol levels), increased willingness to integrate complex dietary changes, and improved quality of life (QOL).4-6 In this study we assessed the feasibility and acceptability of a cooking-based nutrition education intervention to promote GFD adherence and QOL among adults with CD.

Cafeteria noise exposure and fruit and vegetable consumption at school lunch: A cross-sectional study of elementary students.

Presently in the U.S., few children meet the recommendation for daily consumption of fruits and vegetables (FV). School feeding programs have shown promise for increasing FV consumption among young children. However, several aspects of the school cafeteria environment have not been examined regarding their relationship with FV consumption. The purpose of this study was to examine the relationship between noise, selected environmental factors previously explored in the literature (i.e., recess/lunch order, the amount of time allocated for lunch, the presence of a salad bar, and number of FV items offered) and 2nd and 3rd grade students' FV consumption during lunch. A digital photography method was used to assess FV consumption among students across 40 days from 20 schools and environmental exposures, including the noise or sound pressure level of the cafeteria, were assessed during lunch. On average, students in this study consumed 0.35 (SD = 0.31) cups of fruit and 0.24 (SD = 0.29) cups of vegetables. The average noise level in cafeterias was 79.7 (SD = 4.1) Leq DbA (range 70 DbA - 84 DbA). Combined FV consumption was negatively associated with noise exposure (B = -0.017; SE = 0.004; P < 0.001) in hierarchical linear models. Among young children eating in cafeterias, increased noise levels may decrease consumption of fruits and vegetables at the school lunch meal. We hypothesize that increased noise can work in two ways to decrease FV consumption: increased socializing (i.e., talking) and/or decreased hedonic enjoyment of the school lunch meal, however future research is needed to examine these mechanisms and provide causal evidence of this effect.

Obesity intervention programs among adolescents using social cognitive theory: a systematic literature review.

Social cognitive theory (SCT) is a well-known theory for designing nutrition education and physical activity programs for adolescents. This systematic review aimed to evaluate the efficacy of intervention studies based on SCT in reducing or preventing overweight and obesity in adolescents. An electronic literature search in PubMed-Medline, Web of Science and Scopus was performed to identify intervention studies based on SCT aiming at preventing or reducing obesity in adolescents. All the articles published up to July 2016 were included. Only studies reporting body mass index (BMI) or its variant as one of the outcome measures were included. From 240 initially identified studies, 12 met the eligibility criteria. Seven had moderate or strong study quality. Two of the eight randomized controlled trials (RCT) and two of the four quasi-experimental studies showed significant reduction in BMI among intervened participants compared to control. Impacts on diet and physical activity were mixed, but were mostly not significant. The current systematic review found only weak evidence for the efficacy of SCT-based interventions in treating and preventing obesity in adolescents. Further studies systematically using effective behavior change strategies or techniques, larger population sizes, better measurement tools and more robust designs are warranted for a conclusive judgment.

Associations among measures of energy balance related behaviors and psychosocial determinants in urban upper elementary school children.

BACKGROUND: Childhood obesity prevention is a pressing issue. Understanding the relationships among eating and physical activity behaviors and potential psychosocial determinants of behavior will help us design more effective interventions. This study aimed to examine such relationships in a large sample of urban elementary school children. METHODS: Fifth grade students in 20 recruited New York City public schools completed a validated questionnaire on six "do more" (fruits and vegetables and physical activity) and "do less" (sweetened beverages, processed packaged snacks, fast food and sedentary behavior) energy balance related behaviors (EBRBs) and psychosocial determinants of behavior from social cognitive and self-determination theories. Correlations among behaviors and hierarchical linear model analyses of the relationship between psychosocial determinants and behaviors were conducted for those with complete data (n = 952). RESULTS: The "do more" and the "do less" behaviors were significantly correlated within categories (p < 0.01). "Do more" food-related behaviors were correlated with physical activity but so were sports drinks, while the "do less" food-related behaviors tended to be correlated to sedentary behavior (p < 0.01). "Do more" behaviors were associated with self-efficacy and habit strength, and "do less" behaviors with outcome expectations, self-efficacy, habit strength, and behavioral intention. CONCLUSIONS: Interventions can address the healthy and less healthy clusters of behaviors together, focusing on strategies to enhance their self-efficacy and habit strength for the "do more" behaviors and outcome expectations to motivate intention to choose fewer "do less" behaviors, along with enhancing self-efficacy and habit. Research can examine these determinants as potential mediators of change in intervention.

Association Between the Built Environment in School Neighborhoods With Physical Activity Among New York City Children, 2012.

INTRODUCTION: The benefits of physical activity for health and well-being are well established, yet built environment characteristics in the school neighborhood may constrain students' ability to engage in physical activity and contribute to the considerable variation in physical activity among students at different schools. METHODS: Baseline data from the Food, Health and Choices obesity prevention trial were used to create multilevel linear models of the relationship between fifth-grade students' (n = 952) physical activity and related psychosocial factors and characteristics of the built environment of the school's neighborhood (park access, public transportation density, total crime, and walkability), controlling for age and body mass index z scores. RESULTS: Total crime was inversely associated with boys' light physical activity duration (ß = -0.189; P = .02) and behavioral intention for physical activity (ß = -0.178; P = .03). Boys' habit strength for physical activity was positively associated with public transportation density (ß = 0.375; P = .02) and negatively associated with total crime (ß = -0.216; P = .01), explaining 67% of between-school variation. Girls' frequency of light physical activity was positively associated with park access (ß = 0.188; P = .04). Built environment characteristics explained 97% of the between-school variation in girls' self-efficacy in walking for exercise. CONCLUSIONS: Characteristics of the built environment surrounding schools were associated with and explain between-school variation in students' physical activity and several theory-based psychosocial factors. Partnerships between public health practitioners, policy makers, and school administrators may be warranted to shape the school neighborhood, specifically to decrease crime rates and increase park access, to encourage physical activity in youth.

Linking implementation process to intervention outcomes in a middle school obesity prevention curriculum, 'Choice, Control and Change'.

This study investigates the link between process evaluation components and the outcomes of a school-based nutrition curriculum intervention, 'Choice, Control and Change'. Ten New York City public middle schools were recruited and randomly assigned into intervention or control condition. The curriculum was to improve sixth to seventh grade students' energy balance related behaviors, based on social cognitive and self-determination theories, and implemented during the 2006-2007 school year (n = 1136). Behaviors and psychosocial variables were measured by self-reported questionnaires. Process components were evaluated with classroom observations, teacher interviews, and a student questionnaire. Using 'Teacher Implementation' (dose delivered) and 'Student Reception' (dose received) process data; intervention group was further categorized into medium- and high-implementation groups. Analysis of covariance revealed that, compared with control group, only high-implementation group showed significant improvement in students' behavior and psychosocial outcomes. Hierarchical linear models showed that 'Teacher Implementation' and 'Student Reception' significantly predicted students' sweetened beverage outcomes (P < 0.05). 'Student Satisfaction' was also greater when these implementation components were higher, and significantly associated with behavior and psychosocial outcomes (P < 0.05). Implementation process influenced the effectiveness of the 'Choice, Control and Change' intervention study. It is important to take into account the process components when interpreting the results of such research.

Adherence in a 1-year whole foods eating pattern intervention with healthy postmenopausal women.

OBJECTIVE: To determine the degree of dietary adherence or change in eating patterns, and demographic, psychosocial and study characteristics associated with adherence, in the Comparing Healthy Options in Cooking and Eating (CHOICE) Study. DESIGN: Randomized controlled trial where women were randomized to one of three eating patterns: (i) Whole Foods, plant-based, macrobiotic-style (n 22); and Moderate Fat with (ii), and without (iii), 10 g of ground flaxseed added daily, which were combined (n 49). SETTING: A year-long intervention based on social cognitive theory, consisting of twenty-four class sessions involving hands-on cooking classes and behavioural sessions. Monthly 24 h food recalls were obtained and a psychosocial questionnaire was administered at baseline, 6 and 12 months. SUBJECTS: Healthy, free-living, postmenopausal women. RESULTS: A non-adherence score measuring all food servings out-of-compliance with eating pattern recommendations was specifically designed for the present study. Non-adherence scores decreased significantly (P < 0·05) in both groups to about 65 % during the adoption phase (first 4 months) and remained so during the 8-month maintenance period. Class attendance of the Moderate Fat group showed a trend towards significance as a predictor of adherence (P = 0·063). None of the other predictors (e.g. demographic and psychosocial factors) in a longitudinal regression model were significant. CONCLUSIONS: Postmenopausal women were able to adopt and maintain significant changes in their eating patterns, including those on a demanding, near-vegetarian eating plan, suggesting that behavioural interventions with a healthy free-living population can be effective. The non-adherence score developed for the study provides an example of a means for evaluating eating pattern adherence to a dietary intervention.

Lipid-focused dietary education intervention in pregnant women: study protocol for an open-label, parallel, randomised, intervention study addressing adverse pregnancy outcomes in China.

INTRODUCTION: The incidence of infants who are large-for-gestational-age (LGA) is on the rise in China, and its detrimental effects on health have received increasing attention. Diet-based interventions have the potential to reduce adverse birth outcomes, particularly in decreasing the occurrence of LGA infants. We aim to evaluate the effect of lipid-focused diet education based on the theories of behaviour change in pregnant women on maternal and offspring outcomes through a randomised controlled trial. METHODS AND ANALYSIS: We have designed an open-label, parallel, multicentre randomised controlled trial in collaboration with three hospitals in Beijing, China.Pregnant women will be recruited before reaching 12 weeks of gestation and will be randomised in a 1:1:1 ratio into three arms: (1) online education arm, (2) pregnancy nutrition checklist and 'one-page flyer' arm and (3) routine antenatal education. The primary outcome LGA will be recorded at birth. Demographic information, physical activity, sleep and medical history will be collected through questionnaires and case cards prior to enrolment. Questionnaires will also be used to collect dietary behaviours and psychosocial factors of pregnant women at enrolment, at 24-28 weeks and 34-36 weeks of gestation. Additionally, information on breastfeeding and complementary food supplementation for infants and young children will be obtained through questionnaires. Physical development indicators of children and taste tests will be assessed 3 years after delivery. ETHICS AND DISSEMINATION: The study has received ethical approval from the Capital Medical University Ethics Committee and other collaborating study centres. Informed consent will be introduced to pregnant women, and their consent will be obtained. The findings will be reported in relevant national and international academic conferences and peer-reviewed publications. TRIAL REGISTRATION NUMBER: ChiCTR2300071126.

Social Support, Diet, and Physical Activity among Latina/Hispanic Women Breast Cancer Survivors.

Diet and physical activity guidelines for cancer survivorship are less likely to be followed by populations of minority cancer survivors, such as Latina/Hispanic women, compared to non-Hispanic White women. It is important to understand psychosocial mechanisms that may increase adherence to healthy lifestyle habits, especially in populations at risk for poorer cancer outcomes. This cross-sectional study examined the relationships between overall social support (SS) and SS from three sources (family, friends, and significant other) with diet (fruit and vegetables, fat, energy density, and diet quality), and moderate-to-vigorous physical activity (MVPA) behaviors in Latina/Hispanic women with a history of breast cancer (n = 85; M age = 55.2; SD = 9.2). Linear regression models and odds ratios were used to examine associations and adjusted for age, income, and acculturation. Family, significant other, and total SS were positively related to total fruit and vegetable intake but SS from friends was not. Higher levels of SS from all sources were each related to a low energy density diet. A higher quality diet was only related to SS from family. SS was not related to fat intake or MVPA. Higher SS from family and a significant other were associated with higher odds of meeting the fruit/vegetable guidelines; (family, OR = 3.72, 95% CI [1.21, 11.39]; significant other, OR = 3.32, 95% CI [1.08, 10.30]). Having more SS from family or a significant other may contribute to Latina/Hispanic women breast cancer survivors meeting national guidelines for a diet high in fruits and vegetables and low in energy density.

Reliability and Validity of a Theory-Based Determinants of Eating and Physical Activity Behaviors Questionnaire for Chinese Elementary School Children.

OBJECTIVE: The primary objective of this study was to develop and validate a Social Cognitive Theory-based instrument to identify psychosocial factors that influence diet and physical activity among Chinese children aged 10-12 years. DESIGN: This is a cross-sectional study, with data collected from questionnaires. SETTING: Two elementary schools in Beijing, China. PARTICIPANTS: Fourth to sixth-grade students (N = 1,486) aged 10-12 years were recruited. VARIABLES MEASURED: Gender, height, weight, nation, and grade were collected. Energy-balanced eating behaviors and their related sociopsychological factors were surveyed. ANALYSIS: Confirmatory factor analysis, Pearson correlations, Cronbach α index, and mediation analysis were used. RESULTS: (1) Confirmatory factor analysis revealed a 6-factor solution (51 items) and all factor loadings > 0.32, indicating that the model fitness was acceptable. (2) All correlation coefficients are statistically significant. All of the Cronbach α indexes were > 0.65, indicating acceptable reliability. (3) The mediating effect of goal intention and outcome expectations between self-efficacy and habit strength was statistically significant (P < 0.01), verifying the theory structure. CONCLUSIONS AND IMPLICATIONS: This questionnaire exhibits good internal consistency, reliability, and structural validity. It can be effectively employed to investigate energy-balanced eating behaviors related to the Social Cognitive Theory in Chinese children.

Pilot Study of the Feasibility of a Worksite Plant-Based Diabetes Prevention Program.

Introduction: This study aimed to explore the feasibility and acceptability of implementing a worksite diabetes prevention program-Beat Diabetes-on the basis of a plant-based diet and encouragement of physical activity. Methods: This was a mixed-methods pilot study using a 1-group pretest‒post-test design. The participants were university employees. A 13-week group-based intervention adapted from the Diabetes Prevention Program to emphasize a plant-based diet and on the basis of the Health Action Process Approach. Program implementation and participant acceptability were assessed through surveys, weekly documentation of the process, and individual interviews. Consumption of healthy and less healthy plant-based foods and animal-based foods, physical activity, and Health Action Process Approach‒based psychosocial determinants were measured through questionnaires before and after the program, as was blood glucose. Weights were measured weekly. Results: A total of 14 participants were enrolled, with 93% retention. Program implementation was feasible and highly acceptable to participants and also resulted in significant improvements in weight, healthy relative to less healthy plant-based and animal-based foods, vigorous physical activity, blood glucose, and psychosocial determinants of behavior change. Conclusions: On the basis of our pilot study, conducting a worksite plant-based diabetes prevention program was feasible and acceptable and elicited positive changes in physiologic, behavioral, and psychosocial variables related to the risk of diabetes.

Mi Vida Saludable: Content Validity and Reliability of The Preferences and Self-Efficacy of Diet and Physical Activity Behaviors Questionnaire for Latina Women (PSEDPALW) for Cancer Survivors.

The purpose of this study is to conduct validity and reliability testing of a new instrument, the Preferences and Self-Efficacy of Diet and Physical Activity Behaviors Questionnaire for Latina Women (PSEDPALW), which is for women who identify as Latina and are breast cancer survivors. PSEDPALW measures preferences and self-efficacy for four behaviors: physical activity (PA), fruit and vegetable (FV) intake, dietary fat (DF) intake, and added sugar (AS) intake (eight scales in total). Validity testing was conducted through an expert panel review and a cognitive interviewing focus group (n = 4). Reliability was tested via internal consistency reliability (n = 118) and test-retest reliability (n = 30). Validity testing was used to refine PSEDPALW. Reliability testing was conducted on three versions with 104, 47, and 41 items. PA scales had acceptable Cronbach's α (>0.70) but low ICC (NS). FV and DF scales had acceptable Cronbach's α (>0.70), with preferences for the shorter (47- and 41-item) versions (Cronbach's α < 0.70), and all scales had moderate ICC (p < 0.05, except the FV scale on the 104-item version (p = 0.07)). The AS preferences scale had Cronbach's α < 0.70, with self-efficacy > 0.70 for all versions and ICC moderate for all versions (p ≤ 0.01). PSEDPALW may be useful to assess diet and physical activity preferences and self-efficacy in theory-based diet and physical activity interventions in women who identify as Latina and are breast cancer survivors.

Soda Consumption Among Mexican Construction Workers in the Context of the Sugar-Sweetened Beverage Tax.

This study explored the psychosocial determinants of consumption of soda and other taxed sugar-sweetened beverages (SSBs) in Mexican construction workers (CWs) and whether consumption changed as a result of the 2014 SSB tax. We conducted a qualitative case study involving in-depth interviews and focus groups (FGs) with 30 Mexican CWs; supplemented with descriptions of the food and beverages consumed during lunch breaks. We used NVivo 10 to classify information according to the analysis categories, primarily informed by the Reasoned Action Approach (RAA). CWs reported not having changed their consumption of soda and other taxed SSBs as a result of the SSB tax, despite the price increase and "knowing" the potential negative consequences of soda drinking. The most important determinants of soda consumption are a deep-seated social norm of soda drinking and use of soda drinking as part of their professional identity; their likeness for soda; a wide availability of soda in their environments; and a low perceived behavioral control (because they thought themselves as addicted to it). Participants indicated that the best way for them not to consume soda would be if it were not available. These findings lend support for the tight regulation of the availability of SSBs. To have a meaningful impact on these consumers, the SSB tax may need to be much higher. Policy-level interventions should be coupled with interventions at the individual and community levels that aim at denormalizing soda consumption, create new meanings in relation to water consumption, and develop behavioral control to decrease soda consumption.

Teachers' Resources to Support School Lunch: Professional Development Is Warranted.

In the United States, many children who come from low-income backgrounds and experience food insecurity do not take and eat school lunch, despite it being a nutritious meal. Teachers could play a role in encouraging students' consumption of school lunch; however, teachers in America are traditionally uninvolved in the lunch period. The purpose of this research was to understand the resources kindergarten through twelfth grade (K-12) teachers need to encourage students to take and eat school lunch. Two data collection workshops and semi-structured follow-up interviews were conducted with K-12 teachers. The workshops and interviews were recorded, transcribed, and analyzed for salient themes. Ten teachers participated in the workshops and six teachers participated in the follow-up interviews. In general, teachers believe school meals are essential for students' focus and behavior in the classroom. However, to encourage students to take and eat school lunch, teachers need support and resources. From the workshops and interviews, three themes emerged: (1) improvements in the food quality; (2) school community support; and (3) professional development. The data suggests professional development is the greatest resource teachers need, as professional development can enhance teachers' motivation to advocate for better food quality and engage school community support. Greater teacher involvement in school lunch could lay the groundwork for future healthier generations.

Behavioral predictors of low fat intake among economically disadvantaged African-American adolescents.

PURPOSE: To determine whether five behaviors shown to predict low fat intake in adults predicted low fat intake among economically disadvantaged African-American adolescents. DESIGN: Cross-sectional. SUBJECTS AND MEASURES: Recruited through youth services agencies serving low-income communities in New York and New Jersey, participants were 265 African-American adolescents aged 10 to 14 years. Participants completed the Block Fat Screener and scales for measuring the following behaviors: avoiding fat as a seasoning modifying meat to make it lower in fat, substituting high-fat foods with manufactured low-fat equivalents, replacing high-fat foods with fruits and vegetables, and replacing high-fat foods with low fat foods other than fruits and vegetables. ANALYSIS: The reliability and construct validity of the scales were assessed using internal consistency reliability and correlation analyses. Multiple regression analysis was used to determine behavioral predictors of low fat intake. RESULTS: Scale coefficient alphas ranged from .60 to. 80. Fat avoidance, substitution, and replacement with fruits and vegetables were significantly associated with fat intake. The regression equation containing these behaviors accounted for 12% of the variance in intake. All three behaviors were significant predictors of low fat intake. CONCLUSIONS: Fewer behaviors have salience for predicting low fat intake among economically disadvantaged African-American adolescents than among adults. Interventions to lower youths' intake should emphasize fat avoidance, substitution, and replacement with fruits and vegetables.

Urban Preschool Teachers' Nutrition Beliefs, Mealtime Practices, and Associations With Training.

OBJECTIVE: To examine preschool teachers' nutrition-related beliefs and practices and explore associations with Eat Well Play Hard in Child Care Settings (EWPHCCS) training. DESIGN: Causal-comparative study using a post-only, cross-sectional survey exploring teachers' nutrition-related beliefs and mealtime practices. SETTING: New York City preschools serving low-income children. PARTICIPANTS: Ethnically diverse preschool teachers (n = 660), 420 (response rate 90.4%) with EWPHCCS training and 240 (response rate 57.1%) without training. MAIN OUTCOME MEASURES: Teachers' beliefs about their preschool nutrition environments and compliance with recommended mealtime practices. ANALYSIS: Analysis of variance and hierarchical linear modeling. RESULTS: Overall, teachers reported generally favorable beliefs about their preschool nutrition environments and compliance with recommended mealtime practices. EWPHCCS teachers reported more favorable scores on beliefs and practices than nontrained teachers. Teachers who were not parents reported significantly lower scores on beliefs and practices than teachers who were parents. White teachers and the least experienced teachers reported the lowest scores on compliance with mealtime practices. CONCLUSIONS AND IMPLICATIONS: EWPHCCS training was associated with higher scores on both beliefs and practices. However, school-level policy and leadership may also be important. Providing specific training for preschool directors and addressing food quality may further improve teachers' nutrition-related attitudes, beliefs, and practices.

Context Considerations for Developing the In Defense of Food Nutrition Education Curriculum.

OBJECTIVE: To examine perceptions of teachers and afterschool program staff related to the positive aspects and challenges of afterschool education for youth to guide the development of the "In Defense of Food" nutrition education curriculum. METHODS: Semi-structured in-depth interviews with a convenience sample of teachers and afterschool program staff experienced serving at-risk youth were conducted in New York, NY. They were audio-recorded, transcribed verbatim, and analyzed using inductive summative content analysis to identify, count, and compare themes. RESULTS: Interviews (n = 12) generated 2 meta-themes (Pedagogical Elements for Successful Learning and Pragmatic Considerations for hosting health promotion programs in the afterschool context). Learner-centered and tailored approaches and building social connection were considered important for fostering learning in the afterschool context. CONCLUSIONS AND IMPLICATIONS: This study emphasizes the importance of considering pedagogical elements related to delivery that minimizes didactic instruction and focuses on learner-centered approaches. Further research is needed to compare outcomes and process measures common approaches used in designing nutrition education curricula with those that have been described in this study.

In Defense of Food Curriculum: A Mixed Methods Outcome Evaluation in Afterschool.

Background. Highly processed foods are inexpensive and abundant in our food supply, nutritionally poor, and disproportionately marketed to minority youth. This study is part of a curriculum development project to develop, implement, and evaluate the In Defense of Food (IDOF) curriculum designed to increase intake of whole/minimally processed foods and decrease intake of highly processed foods in youth. Aims. This pilot outcome evaluation was undertaken to assess initial effectiveness and to provide an in-depth understanding of changes in behavioral outcomes and psychosocial mediators. Methods. We used an explanatory mixed method approach, including a single-arm pretest-posttest of intervention effect, followed by a food rules assessment and in-depth interviews to describe participant responses to the intervention in more detail. The study was conducted in three afterschool classrooms in urban low-income neighborhoods with 32 multiethnic middle-school youth, receiving 10 weekly 2-hour sessions. Results. Two weeks postintervention, there was a large positive significant increase in whole/minimally processed food intake (p < .01; d = 0.59) and a small decrease in consumption of highly-processed foods (p = ns; d = 0.06), compared with baseline. Significant increases in psychosocial mediators: Self-efficacy and positive outcomes expectations were seen; others were not significant but changed in the desired direction. Qualitative assessments suggest that the intervention promoted skill building, but environmental barriers made these difficult to use. Discussion. The IDOF curriculum may be most effective for promoting consumption of fruits and vegetables, rather than decreasing intake of highly processed foods. In addition, in this young age-group, short actionable food rules may support self-regulation and behavior change. Conclusion. Among adolescent students in low-income urban neighborhoods, the IDOF afterschool curriculum may help promote self-efficacy and positive outcome expectancies and increase fruit and vegetable intake. Focusing on food processing and using "Food Rules" may be promising to elicit behavior change in youth; however, greater supports are needed to overcome social and environmental barriers.

Food, Health, & Choices: Curriculum and Wellness Interventions to Decrease Childhood Obesity in Fifth-Graders.

OBJECTIVE: To evaluate Food, Health, & Choices, two 10-month interventions. DESIGN: Cluster-randomized, controlled study with 4 groups: curriculum, wellness, curriculum plus wellness, and control. SETTING: Twenty elementary schools (5/group) in New York City. PARTICIPANTS: Fifth-grade students (n = 1,159). At baseline, 44.6% were at the ≥85th body mass index (BMI) percentile for age and 86% qualified for free or reduced-price lunch. INTERVENTION: Curriculum was 23 science lessons based on social cognitive and self-determination theories, replacing 2 mandated units. Wellness was classroom food policy and physical activity bouts of Dance Breaks. MAIN OUTCOME MEASURES: For obesity, age- and sex-specific BMI percentiles were used (anthropometric measures). The researchers also employed 6 energy balance-related behaviors and 8 theory-based determinants of behavior change (by questionnaire). ANALYSIS: Pairwise adjusted odds in hierarchical logistic regression models were determined for >85th BMI percentile. Behaviors and theory-based determinants were examined in a 2-level hierarchical linear model with a 2 × 2 design for intervention effects and interactions. RESULTS: Obesity showed no change. For behaviors, there was a negative curriculum intervention change in physical activity (P = .04). The wellness intervention resulted in positive changes for sweetened beverages frequency (P = .05) and size (P = .006); processed packaged snacks size (P = .01); candy frequency (P = .04); baked good frequency (P = .05); and fast food frequency (P = .003), size (P = .01), and combo meals (P = .002). Theory-based determinants demonstrated no change. CONCLUSIONS AND IMPLICATIONS: The findings of the lack of a decrease in obesity, behavior changes only for the wellness intervention, and no changes in theory-based determinants warrant further research.

School Lunch Environmental Factors Impacting Fruit and Vegetable Consumption.

OBJECTIVE: Assess impact of school lunch environmental factors on fruit and vegetable (F&V) consumption in second and third grade students. DESIGN: Cross-sectional observations in 1 school year. PARTICIPANTS: Students from 14 elementary schools in 4 New York City boroughs (n = 877 student-tray observations). MAIN OUTCOME MEASURE(S): Dependent variables were F&V consumption collected by visual observation. Independent variables included school lunch environmental factors, and individual-level and school-level demographics. ANALYSIS: Hierarchical linear modeling was used with F&V consumption as the outcome variable, and relevant independent variables included in each model. RESULTS: Slicing or precutting of fruits and having lunch after recess were positively associated (P < .05) with .163- and .080-cup higher fruit consumption across all students, respectively. Preplating of vegetables on lunch trays, having 2 or more vegetable options, and having lunch after recess were positively associated (P < .05) with .024-, .009-, and .007-cup higher vegetable consumption across all students, respectively. CONCLUSIONS AND IMPLICATIONS: Although there was a small increase in intake, results of the study support that some school lunch environmental factors affect children's F&V consumption, with some factors leading to more impactful increases than others. Slicing of fruits seems most promising in leading to greater fruit consumption and should be further tested.