Obesity remains a significant risk factor for numerous diseases, and is often a problem in young adults, who often fall back on fast food and other less-healthy meals associated with a lower quality diet, lead author Carol S. O’Neal, PhD, of the University of Louisville (Ky.), said in an interview.
Previous research involving Social Cognitive Theory and goal-setting to promote self-efficacy and behavior changes has shown success in improving eating habits in young adults, but adding video technology for an additional education element has not been well studied, Dr. O’Neal and colleagues wrote in the Journal of Nutrition Education and Behavior.
Methods and results
In the study, 138 college students aged 18-40 years participated in a 15-week pilot intervention course at a large, metropolitan university. The course included lectures on a topic, such as carbohydrates, and included skill-based activities, such as how to read an ingredient list, and discussion of how these skills could improve healthier eating and meet nutrition goals, such as eating more whole grains.
A total of 77 completed the study in person, and 61 participated online. The majority (59%) were college sophomores, 74% were White, and 82% were female.
The course engaged the students in weekly food challenges to apply their knowledge and develop better eating habits and behaviors. The challenges were accompanied by cooking videos related to each week’s topic, such as how to make overnight oats for the healthy carbohydrates/whole grains week.
Students also selected two goals each week, such as choosing whole grain foods to increase fiber consumption, from a list of 10-15 goals, and were required to write weekly reflections to track their progress toward these goals. Goal-setting was based on the strategy of creating goals that are specific, measurable, attainable, realistic, and time-bound (the SMART method).
The main outcomes were increased consumption of fruits and vegetables, improved skills in cooking and healthy eating, and improved attitudes about healthy cooking and eating. The researchers surveyed the students to determine whether these outcomes were met.
Students participating in the study indicated that they met the goal of eating at least five servings of fruits and vegetables per day more often after the course than before, the researchers wrote.
By the course’s end, the students showed significant increases in consumption of fruits and vegetables (P < .001 for both), and in the self-efficacy related to consumption of produce (P = .004); cooking (P = .002;, and using more fruits, vegetables, and seasonings rather than salt in cooking (P = .001).
A review of the students’ written reflections illustrated positive behavior changes such as planning meals before shopping, preparing meals in advance on weekends, taking lunch to school, and using herbs and spices, the researchers noted.
“Self-directed SMART goals set you up for success by making goals specific, measurable, achievable, realistic, and timely,” Dr. O’Neal said in an interview. “The SMART method helps push you further, gives you a sense of direction, and helps you organize and reach your goals,” but self-monitoring and social support are also needed for success. The takeaway message for clinicians is that use of a self-directed goal-setting strategy may be more effective at changing dietary behaviors and promoting self-efficacy than a traditional dietary prescription.
In addition, “this model could be used to address a variety of health outcomes in dietetics, health education and community health programs,” said Dr. O’Neal. “I think the key components of this intervention are teaching SMART goal setting, self-monitoring, and social support of successes. I see time as a main barrier, but this barrier could be reduced for populations who are able to use online learning. Our intervention was successful for in-person and online learning.”
Other areas for future research include evaluation of progress that combines quantitative data and qualitative reflections, she said.