Poster Topical Area: Obesity

Location: Hall D

Poster Board Number: 685

P23-058 - Effect of a pre-dinner walnut snack on nutrient 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 a meal could improve the nutritional quality of 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 meal nutrient ingestion. (LSM ± SE).

Total fat intake (g) after CW snack (36.8 ± 1.9) was less (p=0.01) than after GC (40.7 ± 1.9) and NS (41.5 ± 1.9). Saturated fat intake (g) after CW (13.4 ± 0.79) was less (p=0.03) than after NS (15.1 ± 0.79). Dietary fiber intake (g) after CW (3.1 ± 0.18) was less (p=0.01) than after GC (3.6 ± 0.18) and NS (3.6 ± 0.18). Protein intake (g) after CW (31.9 ± 1.9) was less (p=0.02) than after NS (36.0 ± 1.9). Cholesterol intake (mg) after CW (92.4 ± 5.7) was less (p=0.03) than after NS (103.6 ± 5.6). Sodium intake (mg) after CW (1723.1 ± 99.0) was less (p=0.02) than after NS (1908.5 ± 98.4). Consumption of snacks prior to the standard dinner had no effect on total carbohydrate and sugar ingestion.

Consumption of a CW snack prior to a dinner resulted in differences in nutrient intake. Understanding how walnut consumption impacts nutrient intake during a subsequent dinner could lead to improvements in weight management among students and improved health habits that carry forward into adulthood for obesity benefits.

Funding Source: California Walnut Commission

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

Michelle E. LaCasse

Winona State University
Winona, Minnesota