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Increasing Fruit and Vegetable Consumption among
Middle School Students: Implementing the 5-A-Day Program
Mary Dodds Spoon
Nutrition Specialist
Internet address: mspoon@agnt1.ag.unr.edu
Jamie Benedict
Nutrition Specialist
Carolyn Leontos
Nutrition Specialist
Natalie Krelle-Zepponi
Former Student Program Assistant
University of Nevada, Reno
Reno, Nevada
Problem/Need
Research literature clearly states that populations
consuming diets rich in vegetables, fruits, and grain products
have significantly lower rates of many types of cancer (Public
Health Service, 1988.). Unfortunately, the 1989-1991 Continuing
Survey of Food Intakes by Individuals showed that only 32% of
Americans currently consume the minimum numbers of five servings
of fruits and vegetables each day (Krebs-Smith, 1995). In
addition, the 1991 5 A Day Baseline Survey found that only eight%
think they should eat five or more fruits and vegetables each day
for good health (Subar, Heimendinger, Krebs-Smith, Patterson,
Kessler, & Pivonka, 1992).
Education is one way to increase the consumption of fruits
and vegetables. Research shows that those who think they should
eat more fruits and vegetables are more likely to do so (Subar et
al., 1992). Those who develop the habit of eating more fruits and
vegetables early in life are more likely to continue those habits
into adulthood (Subar et al., 1992). The 5-A-Day for Better
Health Program is a national effort to increase Americans' fruit
and vegetable consumption to five servings daily - one of the
objectives of Healthy People 2000 (U.S. Department of Health and
Human Services (DHHS), 1991).
Program Development and Implementation
Through partnerships with county school districts, school
food services, retail supermarkets, and produce companies, the
University of Nevada Cooperative Extension developed,
implemented, and evaluated a 5-A-Day program in two Nevada middle
schools with diverse student bodies from low socio-economic
backgrounds were chosen since research has shown this audience
has a higher incidence of chronic disease (DHHS, 1991).
The goal of this 5-A-Day program, called "Take Five," was to
increase knowledge, improve attitudes, and promote the
consumption of fruits and vegetables. The program, based on
Social Learning Theory, used a combination of educational methods
to influence behavior change. The Social Learning Theory, also
known as Social Cognitive Theory (Bandura, 1977, 1986) is unique
in that it provides a framework for designing interventions for
the individual as well as the environment. The underlying
assumption of Social Learning Theory is that behavior is dynamic
and depends on personal and environmental constructs that
influence each other simultaneously (Perry, Baranowski, & Parcel,
1990). The "Take Five" program used this theory by incorporating
environmental modifications, observational learning, and
reinforcement to enhance self-efficacy and influence behavior.
The implementation of the "Take Five" program required a
high degree of collaboration. While strong support for the
program was provided by school principals, it was also essential
that teachers, school secretaries and custodians support the
effort because they influence school programs and policy.
One day a week for 16 weeks, teachers taught a "Take Five"
lesson in their homeroom classes. Lesson concepts were then
reinforced that day at lunchtime with fruit and vegetable samples
and poster displays in the cafeteria. This also provided
opportunities for students to observe other students and teachers
consuming fruits and vegetables.
An incentive program in which students earned "points" for
prizes encouraged participation. Each week when students sampled
a new fruit or vegetable, they were given point stickers to place
on a prize card. Filled prize cards were entered in the prize
drawing. Most prizes were donated by fruit and vegetable
companies and included such items as beach towels, baseball caps,
watches, and T-shirts.
Parents received a monthly newsletter which contained
nutrition information, serving ideas, recipes, and money-saving
supermarket coupons for fruits and vegetables to encourage fruit
and vegetable consumption at home.
Program Evaluation
The program was evaluated using a pyre-/post-design.
Teachers administered the evaluation instrument to students prior
to and upon completion of the program. The 43-item instrument
assessed knowledge, behavior, and attitudes about eating fruits
and vegetables. The instrument included closed-ended questions
with ordered, five-point response sets (e.g., "strongly disagree"
to "strongly agree"), three-point sets (i.e., "true", "false",
"don't know"), open-ended questions, and a food frequency
questionnaire (FFQ) adapted by National Cancer Institute staff
from the questions of the FFQ of Block, Woods, Potosky, Clifford
(1990). Demographic data was also collected.
Results showed that students' attitudes about the
acceptability of eating fruits and vegetables improved
significantly (p=.005), as did their perception of their ability
to eat five fruits and vegetables per day (p<.0001). Post-test
results also showed a greater number of students (42%) knew they
should eat five fruits and vegetables each day compared to the
pretest (12%). Students demonstrated a high level of knowledge of
the health benefits of eating fruits and vegetables on the
pretest (mean score of 55 points out of 75 points) and showed no
significant increase on the post-test.
Though 46% of students stated they ate more fruits and
vegetables as a result of the program, results of the FFQ were
not useful since large numbers of students used the highest
category to report consumption (five or more times per day). The
validity of this tool for elementary-school children was
questioned in a recent article by Baranowski, Smith, Baranowski,
Wang, Doyle, Loin, Hear, Resnicow (1997). They reported that the
large number of response categories with varying frequencies and
time intervals may have been confusing for children of this age.
With similar results of the FFQ with middle-school age children,
the use of this tool with children seems limited.
While approximately 4,500 newsletters containing coupons
were sent to the students' homes, only 82 of the coupons were
redeemed at the designated supermarkets. Reasons for this poor
return might include: target audience may not have been
accustomed to using coupons; the coupons were not viewed as
valuable; or the supermarkets may not have had accurate tracking
of those coupons redeemed. Also, due to the fact that other
supermarkets accept competitor's coupons, the "Take Five" coupons
may have been redeemed elsewhere and could not be tracked.
Implications
School programs like the "Take Five" program require support
from all levels. Not only do principals, teachers and food
service personnel need to be highly supportive, but also
ancillary employees such as school secretaries and custodians.
Much to our surprise, custodians, not the food service director,
often dictated which fruits and vegetables were acceptable for
serving in the cafeteria. Due to the janitorial problems they
could create, some fruits and vegetables, such as blueberries and
grapes, were not allowed to be served regardless of how
nutritious or well-liked the foods were by the students.
Involving custodians in the early stages of program development
may prove advantageous in implementation.
While students showed a high degree of enthusiasm toward the
program and were quite willing to try the variety of fruits and
vegetables, it was not possible to objectively measure behavior
changes. What was evident was that students enjoyed the program
and devoured fruit and vegetable samples each week and, in many
instances, requested multiple servings until the abundant
supplies were depleted. Teachers claimed that students seemed
more well-behaved on "Take Five" program days in order to get to
the cafeteria in time to participate in the fruit and vegetable
samplings. For future programs, alternative methods to assess
dietary intake should be included.
In summary, the "Take Five" program improved or enhanced
students' attitudes towards the acceptability of eating fruits
and vegetables and their perception as to whether they could eat
five fruits and vegetables each day. Though incentives were
offered to encourage participation, it became clear that they
weren't needed.
References
Bandura, A. (1977). Social learning theory. Englewood
Cliffs, NJ: Prentice-Hall.
Bandura, A. (1986). Social Foundations of Thought and
Action. Englewood Cliffs, NJ: Prentice-Hall.
Baranowski, T., Smith, M., Baranowski, J., Wang, D., Doyle,
C., Loin, L., Hear, M., Resnicow, K. (1997). Low Validity of a
seven-item fruit and vegetable food frequency questionnaire among
third-grade students. Journal of the American Dietetic
Association, 97, 66-68.
Block, G., Woods, M., Potosky, A., Clifford, C. (1990).
Validation of a self-administered diet history questionnaire
using multiple diet records. Journal of Clinical Epidemiology,
43, 1327-1335
Krebs-Smith, S. M., Cook, A., Subar, .A. F., Cleveland, L.,
Friday, J. (1995). US Adults' Fruit and Vegetable Intakes, 1989
to 1991: A Revised Baseline for the Healthy People 2000
Objective. American Journal of Public Health, 85, (12), 1623-
1629.
Perry, C.L., Baranowski, T., and Parcel, G.S. (1990). How
individuals, environments, and health behavior interact: Social
Learning Theory. In K. Glans, K. Lewis, B. River (Ens.), Health
Behavior and Health Education: Theory Research and Practice (pp.
161-186). San Francisco: Jossey-Bass Publishers.
Public Health Service (1988). The Surgeon General's Report
on Nutrition and Health (DHHS Publication No. PUS 88-50210).
Washington, DC: U.S. Government Printing Office.
Subar, A. S., Heimendinger, J., Krebs-Smith, S. M.,
Patterson, B. H., Kessler, R., Pivonka, E. (July 1992). 5 A Day
For Better Health: A Baseline Study Of Americans' Fruit And
Vegetable Consumption. Rockville, MD: National Cancer Institute.
United States Department of Health and Human Services
(1991). Healthy People 2000 (DHHS Publication No. PUS 91-
50212). Washington, DC: U.S. Government Printing Office.
Author Notes: Funding for this project was provided by the
Nevada State Preventative Health Advisory Committee.
This article is online at http://www.joe.org/joe/1998august/a4.html.
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