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Would a little “nudge” help you to pick healthier meal options?


According to the U.S. Department of Agriculture, more than 5 billion school lunches are served daily in the United States. Additionally, although 99.9 percent of American children aged 12 to 18 consume fruits and vegetables daily, less than 1 percent eat the federally recommended amount of those foods. So the UF/IFAS study could show helpful, albeit early, findings.

In a newly published study in the Journal of Economic Psychology, UF/IFAS researchers recruited 71 students to participate in the National School Lunch Program at a Florida public school.

Two groups of fifth- and sixth-grade students preordered their lunches via computer. One of those groups received messages — what researchers call “nudges” — indicating they had not selected all five components of a healthy lunch. Those are meat or a meat alternative, grain, fruit, vegetable and low-fat milk.

The control group ordered their meals in the regular school lunch lines.

Researchers found the students in the group that received nudges chose 51 percent more fruits, 29.7 percent more vegetables and 37 percent more low-fat milk than the control group. The group that simply ordered online without nudges chose 27 percent more fruits, 15.8 percent more vegetables and 16.3 percent more low-fat milk than the control group.

The study did not examine actual food consumption.

The nudges come from the U.S. Department of Agriculture’s MyPlate program. According to its website, www.choosemyplate.gov/, MyPlate reminds consumers to find their healthy eating style and build it throughout their lifetimes. According to the MyPlate website, this means:

• Focus on variety, amount and nutrition.

• Choose foods and beverages with less saturated fat, sodium and added sugars.

• Start with small changes to build healthier eating styles.

• Support healthy eating for everyone.

Jaclyn Kropp, a UF/IFAS assistant professor of food and resource economics and the lead author on the study, emphasized researchers must further study the impact of nudges on school lunch selections.

“While more research is needed to determine the long-term effects of repeated nudging, there is evidence that low-cost nudges can encourage the selection of healthy items in the school lunchroom,” Kropp said. (Report from Science Daily)

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