Social Cognitive Model of Fruit and Vegetable Consumption in Elementary School Children

Fruit and vegetable consumption is related to reduced risk for certain forms of cancer. Health organizations recommend the increased consumption of fruit and vegetables. Despite these recommendations, few U.S. children eat the recommended number of at least five servings of fruit and vegetables per day. Understanding the determinants of consumption might improve our ability to increase consumption. Few theory-based models have been developed to explain and predict the consumption of various foods by children. This study proposed a model to explain fruit and vegetable consumption in children based on Social Cognitive Theory and on the literature in nutrition education. The model was tested using structural equation modeling techniques. Data from 414 third-graders were gathered on five predictors including availability, modeling, nutrition education, motivation (i.e., self-efficacy, outcome expectancies, food preferences), and knowledge. The proposed model was tested with two random splits of the data and also separately for males and females. Results indicate adequate fit of the models for each of the four data sets (split 1, split 2, males, females). The pattern of significant paths was similar across the data sets. Availability and motivation (i.e., self-efficacy, outcome expectancies, food preference) were most consistently related to consumption and to other constructs in the model.     

A Garden Pilot Project Enhances Fruit and Vegetable Consumption among Children

Fruit and vegetable intake among children is inadequate. Garden-based nutrition education programs may offer a strategy for increasing fruit and vegetable intake in children. A 12-week pilot intervention was designed to promote fruit and vegetable intake among 4th to 6th grade children (n=93) attending a YMCA summer camp. Children participated in garden-based activities twice per week. Weekly educational activities included fruit and vegetable taste tests, preparation of fruit and vegetable snacks, and family newsletters sent home to parents. The pilot intervention was evaluated using a pre and post survey to determine participant satisfaction and the short-term impacts of the program. The process evaluation focused on program satisfaction, whereas the short-term impact evaluation assessed fruit and vegetable exposure, preference, self-efficacy, asking behavior, and availability of fruits and vegetables in the home. Data from the impact evaluation were compared from baseline to follow-up using McNemar's test (dichotomous variables) and Wilcoxon signed rank test (scales/continuous variables). Children reported high levels of enjoyment in the intervention activities. Most children (97.8%) enjoyed taste-testing fruits and vegetables. Children also liked preparing fruit and vegetable snacks (93.4%), working in their garden (95.6%), and learning about fruits and vegetables (91.3%). Impact data suggest that the intervention led to an increase in the number of fruits and vegetables ever eaten (P<0.001), vegetable preferences (P<0.001), and fruit and vegetable asking behavior at home (P<0.002). Garden-based nutrition education programs can increase fruit and vegetable exposure and improve predictors of fruit and vegetable intake through experiential learning activities. Participation in the “seed to table” experience of eating may help promote healthful eating behaviors among youth. Food and nutrition professionals should consider garden-based nutrition education programs that connect children with healthful foods through fun, hands-on activities.     

A Qualitative Investigation of Teachers' Information,Motivation, and Behavioral Skills for Increasing Fruit and Vegetable Consumption in Preschoolers

ObjectiveUsing the Information–Motivation–Behavioral Skills model as a framework, researchers qualitatively assessed preschool teachers' perceived motivation, facilitators, and barriers related to getting preschool children to eat fruits and vegetables (FV).MethodsIndividual, semi-structured interviews with 28 Head Start teachers in central North Carolina.ResultsParticipants reported the need for FV-related information (Information) to improve FV consumption in children, perceived themselves to be parents at school (Motivation), and reported using conditional rewards and punishment statements to get preschoolers to eat FV (Behavioral Skills).Conclusions and ImplicationsNutrition educators may use the Information–Motivation–Behavioral Skills model to develop education materials targeting increases in preschoolers' FV consumption. To motivate preschool teachers who see themselves as parents at school (Motivation), nutrition educators can provide teachers with FV-related information that was reported as their needs (Information), and supportive feeding practices (Behavioral Skills) to get preschoolers to consume FV.     

Impact of Consumption of Vegetable,Fruit, Grain,and High Glycemic Index Foods on Aggressive Prostate Cancer Risk

Prostate cancer is a common but complex disease, and distinguishing modifiable risk factors such as diet for more aggressive disease is extremely important. Previous work has detected intriguing associations between vegetable, fruit, and grains and more aggressive prostate cancer, although these remain somewhat unclear. Here we further investigate such potential relationships with a case-control study of 982 men (470 more aggressive prostate cancer cases and 512 control subjects). Comparing the highest to lowest quartiles of intake, we found that increasing intakes of leafy vegetables were inversely associated with risk of aggressive prostate cancer [adjusted odds ratio (OR) = 0.66, 95% CI: 0.46, 0.96; P trend = 0.02], as was higher consumption of high carotenoid vegetables (OR = 0.71, 95% CI: 0.48, 1.04; P trend = 0.04). Conversely, increased consumption of high glycemic index foods were positively associated with risk of aggressive disease (OR = 1.64, 95% CI: 1.05, 2.57; P trend = 0.02). These results were driven by a number of specific foods within the food groups. Our findings support the hypothesis that diets high in vegetables and low in high glycemic index foods decrease risk of aggressive prostate cancer.     

Consumption Patterns of Fruit and Vegetable Juices and Dietary Nutrient Density among French Children and Adults

Background: Fruit and vegetable consumption is a marker of higher-quality diets; less is known about the contribution of 100% fruit and vegetable juices (FVJ) to diet quality. Objective: To explore FVJ consumption patterns in relation to dietary nutrient density among French children (aged 3–14 years old) and adults (≥21 years old). Methods: Analyses were based on the nationally representative 2013 CCAF (Comportements et Consommations Alimentaires en France) survey of 1930 respondents, stratified by age group, FVJ consumption, and socioeconomic status (SES). Dietary nutrient density was based on the Nutrient Rich Food (NRF9.3) index, adjusted for gender and age. Results: Mean total consumption of fruits and vegetables was 2.6 servings/day for children and 3.8 servings/day for adults. Mean population consumption of FVJ was 83 mL/day for children and 54.6 mL/day for adults, equivalent to 0.4 servings/day and 0.3 servings/day respectively. FVJ consumers had higher quality diets than did non-consumers, after adjusting for covariates. The respective NRF9.3 values were 486.4 ± 4.3 vs. 428.7 ± 7.5 for children and 460.7 ± 4.4 vs. 435.4 ± 4.4 for adults. FVJ consumers had similar or higher intakes of fruits and vegetables than did non-consumers. The socioeconomic gradient for FVJ consumption was much weaker (p < 0.046) than for whole fruit (p < 0.01). Conclusions: In a nationally representative sample of French children and adults, fruit and vegetable consumption fell short of recommended values. Higher FVJ consumption was associated with higher-quality diets and better compliance with the French National Plan for Nutrition and Health (PNNS).     

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.

Promoting Fruit and Vegetable Consumption for Childhood Obesity Prevention

Currently, food marketing for unhealthy foods is omnipresent. Foods high in fat, salt, and sugar (HFSS) are advertised intensively on several media platforms, including digital platforms that are increasingly used by children, such as social media, and can be bought almost everywhere. This could contribute to the obesity epidemic that we are facing. As the majority of children and adolescents do not eat the recommended amount of fruits and vegetables (F&V), which leads to chronic diseases, we need to change the obesogenic environment to a healthogenic environment. Reducing the marketing of energy-dense snacks to children and increasing the promotion of healthier foods, such as fruits and vegetables, may be an effective and necessary instrument to improve the dietary intake of children and reduce the risk of their experiencing some chronic diseases later in life. With this focused narrative review, we provide an overview of how children and adolescents react to food promotions and how food promotional efforts might be a useful tool to increase the attractiveness of fruit and vegetables. This review therefore contributes to the question of how changing the advertising and media environment of children and adolescents could help create a world where the healthy choice is the easier choice, which would reduce childhood obesity and improve children’s health, as well as to make the food system more sustainable.     

Social-Cognitive Correlates of Fruit and Vegetable Consumption in Minority and Non-Minority Youth

ObjectiveInadequate fruit and vegetable (FV) consumption signals a need for identifying predictors and correlates of intake, particularly in diverse adolescents.DesignParticipants completed an on-line assessment in early 2010.SettingComputer classrooms in 4 high schools.ParticipantsOne hundred twenty-two Caucasian and 125 minority (African American and Hispanic) high school students (mean age = 15.3 years, SD = 1.0) with parental consent. Response rate was 89%.Variables MeasuredSelf-efficacy as measured by confidence in goal setting and decision making about healthful eating; perceived benefits and barriers to eating FVs; healthful eating-related social support; body esteem; and FV intake.Analysist tests were used to examine group differences, and binary logistic regression analyses were conducted to explore the predictors of 5-A-Day FV consumption.ResultsThirty-four percent of the non-minority group and 28% of the minority group reported eating 5 or more portions of FVs a day (P = .34). Self-efficacy and perceived benefits predicted consumption in minority participants, whereas barriers and social support were significant predictors in the non-minority group.Conclusions and ImplicationsThese findings suggest different variables predict consumption for minority and non-minority groups and that self-efficacy is an important variable to consider in dietary change programs for minority adolescents.     

Innovative Newsletter Interventions Improve Fruit and Vegetable Consumption in Healthy Adults

Objective To evaluate the effectiveness of computer-tailored newsletter interventions in improving the number and variety of fruits and vegetables eaten by adults.Design The 4-group randomized trial with pre- and post-intervention measures consisted of a control group and 3 intervention groups receiving nontailored newsletters, computer-tailored newsletters, or tailored newsletters with tailored goal-setting information. Intervention groups received 1 newsletter each month for 4 months.Subjects Baseline surveys were completed by 710 health maintenance organization clients. Postintervention surveys administered 6 months after baseline were completed by 573 participants (80.8%).Intervention All newsletters contained strategies for improving fruit and vegetable consumption. Tailored newsletters used computer algorithms to match a person's baseline survey information with the most relevant newsletter messages for promoting dietary change.Main outcome measures Daily intake and weekly variety of fruits and vegetables were measured using a food frequency questionnaire.Statistical analyses performed Analysis of covariance and Tukey's honestly significant difference test were used to assess differences in the number and variety of fruits and vegetables consumed among intervention groups.Results For persons completing postintervention surveys (n=573), all 3 newsletter groups had significantly higher daily intake and variety scores compared with the control group. Although there was a trend of improved intake and variety with each added newsletter element, there were no significant differences at follow-up among the newsletter groups.Conclusions Newsletters can be effective in improving the fruit and vegetable consumption of adults. In this study, a computer-tailoring system did not significantly enhance the effect of the nutrition newsletters on fruit and vegetable intake. J Am Diet Assoc. 1999;99:705–709.     

Differences in the Prevalence of Fruit and Vegetable Consumption in Spanish Workers

The present study aims to examine the differences in daily fruit and vegetable consumption in the working population in Spain. A cross-sectional study was conducted, using data from the 2017 National Health Survey (n = 10,700 workers aged between 18 and 65 years). The daily consumption of fruit and vegetables was evaluated using two items included in a food frequency questionnaire. Occupations were classified into the 17 main groups of the National Classification of Occupations of 2011 (CNO-11). The prevalence (P) of daily fruit and vegetable consumption was calculated in relation to sociodemographic characteristics, health behaviors, work-related characteristics and occupations. Logistic regression analysis was performed to examine the association, with simple and adjusted Odds Ratio (aOR). The P of daily consumption of fruit and vegetables in workers was 60% for fruit and 40% for vegetables. After adjusting for sociodemographic characteristics and health behaviors, workers working night or rotating shifts had a lower consumption of fruits (aOR:0.9; p < 0.05), and those working on temporary contracts had a lower consumption of vegetables (aOR:0.8; p < 0.05). Engineers, scientists, health care workers and teachers had the highest fruit consumption (74.5%) and the highest vegetable consumption (55.1%). The lowest consumption of fruits was presented by the military (42.3%) and unskilled workers in the service sector (45.8%), and the lowest consumption of vegetables was presented by skilled construction workers (25.5%). These findings could aid in workplace health promotion and could be used in future studies to evaluate the impact of the activities adopted.     

School Gardens: An Experiential Learning Approach for a Nutrition Education Program to Increase Fruit and Vegetable Knowledge,Preference, and Consumption among Second-grade Students

ObjectiveTo examine the effects of a school garden on children's fruit and vegetable knowledge, preference, and consumption.DesignSelf-report questionnaires, interview-style taste and rate items, lunchroom observations.SettingAn elementary school.ParticipantsSecond-grade students (n = 115).InterventionParticipants were assigned to one of 3 groups: (1) nutrition education and gardening (NE+G) treatment group, (2) nutrition education only (NE) treatment group, or (3) control group (CG). Both treatment groups received classroom instruction, and the NE+G group also received a school gardening experience.Main Outcome MeasuresFruit and vegetable knowledge, preference, and consumption.AnalysisAnalyses of variance (α = .05).ResultsParticipants in the NE+G and NE treatment groups exhibited significantly greater improvements in nutrition knowledge and taste ratings than did participants in the CG. Moreover, the NE+G group was more likely to choose and consume vegetables in a lunchroom setting at post-assessment than either the NE or CG groups.Conclusions and ImplicationsSchool gardens as a component of nutrition education can increase fruit and vegetable knowledge and cause behavior change among children. These findings suggest that school administrators, classroom teachers, and nutrition educators should implement school gardens as a way to positively influence dietary habits at an early age.