The Theory of Planned Behavior and the USDA Summer Food Service Program

Behavior toward on-farm food safety: Commercial and exporter pistachio growers

Consumers' demand for high-degree food safety obliges the producers to respect health principles and enhance their product quality in the manufacturing process. Food safety refers to the conditions and practices that preserve food quality in order to prevent contamination and foodborne illnesses. This study aimed to investigate farmers' behavior toward on-farm food safety in Iran. So a survey study was conducted on the research population composed of commercial and exporter pistachio growers in Iran of whom 120 were selected. This paper reports the results of this exploratory study to conceptualize the measurement of pistachio growers' farm food safety using the theory of planned behavior. Structural equation modeling (partial least squares) was used to draw the research models and the relationships between latent variables and indicators. The findings revealed a statistically significant relationship between intention and self-efficacy. The intention is one of the most important variables in determining the planned behavior that has the greatest impact on behavior. Future research on this topic is recommended to use more variables that affect farmers' decision-making processes to form a strong opinion in predicting their behavior. It is crucial to consider some effective interventions such as providing large-scale training and community awareness programs for pistachio growers, particularly with the help of mass media, adopting suitable policy-making for on-farm food safety, and specifically supporting pistachio growers for the implementation of GAP-related practices.

Implementation and Evaluation of a School-Based Educational Program Targeting Healthy Diet and Exercise (DIEX) for Greek High School Students

The present study examined the effectiveness of a school-based health education program promoting healthy diet and exercise, named DIEX, implemented on adolescents. The program is based on the Theory of Planned Behavior (TPB) and is supported by life skills training. The recipients of the program were high school students (n = 367; 168 boys and 199 girls) from 14 schools in Greece who attended 10 1 h sessions implemented by their schoolteachers. Data were collected before and after the program implementation through online questionnaires for: a. attitude, intention, subjective norms, and PBC toward healthy eating; b. knowledge about healthy eating; c. exercise behavior and attitude toward the DIEX program; and d. satisfaction with the DIEX program (only post-program). The results showed that there were significant differences among the pre- and post-measures of students' knowledge and behavior about healthy diet, as well as attitudes and satisfaction toward the program's application. The results show that the DIEX program may have improved nutrition behavior variables. Conclusively, a theory-based behavioral intervention with skills training may result in positive behavioral changes for young students during health education in school settings with the assistance of new technologies.

The Impact of Lifestyle Intervention on Dietary Quality among Rural Women with Previous Gestational Diabetes Mellitus-A Randomized Controlled Study

Healthy diet is essential to type 2 diabetes mellitus (T2DM) prevention for women with previous gestational diabetes mellitus (GDM). To evaluate the effect of a lifestyle intervention program on diet quality for rural women who were previously diagnosed with GDM, we conducted a randomized controlled study in two counties located in south-central China. A total of 404 eligible women were allocated into an intervention group and control group. Participants in the intervention group received 6-month lifestyle intervention including six group seminars and eight telephone consultations. Dietary data were collected at baseline and 18 months via a 24 h dietary recall, and dietary quality was measured by two indicators, Chinese Healthy Eating Score (CHEI) and Minimum Dietary Diversity for Women (MDD-W). Baseline CHEI scores (54.4 vs. 53.5, p = 0.305) and the proportions of participants who met MDD-W (73.8% vs. 74.5%, p = 0.904) were comparable between the two groups. The intervention group achieved a higher CHEI score (62.2 vs. 58.9, p = 0.001) and higher MDD-W proportion (90.6% vs. 81.2%, p = 0.023) at 18 months. Lifestyle intervention was associated with the change of CHEI (p = 0.049) but not with MDD-W (p = 0.212). In conclusion, compared with usual care, lifestyle intervention resulted in greater improvement of dietary quality among rural women with previous GDM.