Abstract
Teens and Greens: The Effect of Vegetable‐Based Smoothies on Adolescent Health and School Performance S Lefkowitz, S Rockway Capital Brands, 11755 Wilshire Blvd; LA CA 90025 ABSTRACT Background: Children who eat breakfast are more likely to meet nutritional needs and perform better in school and on tests, yet many skip breakfast and do not meet their RDI for vegetable intake.Purpose: Introduce vegetables to high school students at breakfast by giving a variety of fresh produce and high‐powered blenders to make healthy, palatable smoothies.Design: Pre‐post design, 43 students from a local high school volunteered for a 3‐month pilot study. An RD met and encouraged students daily to make their own smoothie, ideally with 2 C veggies. Outcome measures were body composition, lipids and change in nutrient intake. Qualitative data were obtained at baseline and end of study via surveys regarding students’ views of health, focus and performance in school.Results: Of the 43 students, 21 completed. Waist circumference decreased by 3% on average; plasma HDL increased in 14 students, TC dropped 9% in 7 students. Energy improved in 13 students. Ten percent had better grades. Afternoon lethargy dropped from 35% to 22%. Change in nutrient profiles of smoothies: Total kcal decreased from 293 to 247; veg servings increased from 1.75 to 2.25; CHO decreased from 58 to 40.5g; protein intake increased 1g, fat increased from 6 to 8.5 g and no change in fiber intake.Conclusion: A daily vegetable‐based smoothie improved energy levels, focus, lipid profiles and body image in participating high school students.
Published Version
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