Poster Topical Area: Obesity

Location: Hall D

Poster Board Number: 654

P23-027 - Effect of a pre-dinner walnut snack on caloric intake among university students

Sunday, Jun 10
8:00 AM – 6:00 PM

Objective: Freshman-15 is a phenomenon commonly observed among students enrolled in cafeteria meal plans resulting in weight gain due to new eating patterns. Eating habits established by young people tend to continue into later adulthood and may contribute to obesity. Walnuts are a nutrient dense snack that can improve nutritional health. Consumption of walnuts prior to dinner could alter caloric intake during the subsequent meal.

Healthy students (n=36; age 18-20) received a standard dinner (1760 Calories) with three treatments (90 minutes pre-meal) in a randomized single crossover design: 1) 190 Cal of California Walnuts (CW) 2) 190 Cal of gummi candy (GC), or 3) no snack (NS; control),) on three consecutive nights, followed by analysis of total caloric ingestion (LSM ± SE).

Total dinner calories after CW, GC, and NS were 861 ± 40, 931 ± 40, and 956 ± 40 with CW<NS (p=0.02) and CW<GC (p=0.10). Total dinner calories with snack included were GW, GC, and NS were 1020 ± 48, 1065 ± 48, and 942 ± 48 (treatment difference p=0.08). Percent of total dinner calories after CW, GC, and NS were 47 ± 3, 50 ± 3, and 53 ± 3. Percent of total calories with snack after CW, GC, and NS were 52 ± 3, 55 ± 3, and 54 ± 2.

Consumption of a CW snack prior to a dinner reduced meal time caloric intake. By reducing caloric intake during a standardized dinner, long term walnut consumption may lead to improvements in body weight management among university students and reductions in subsequent obesity during later adulthood.

Funding Source: California Walnut Commission

CoAuthors: Gabrielle Schnellman – Winona State University ; Michelle LaCasse – Winona State University ; Mackenzie Weis – Winona State University ; Molly Ahmann – Winona State University ; Ted Wilson – Winona State University; Elizabeth Gile – Winona State University ; Tisha Hooks – Winona State University

Lauren S. DeVaan

Winona State University
Winona, Minnesota