Influence of Food Order on Appetite and Satiety Responses in Vegetarian Meal Contexts: A Randomized Parallel-Group Study
Poster #: 075
Session/Time: B
Author:
Bradley Eppinger, BA
Mentor:
Patrick Wilson, PhD, RDN
Research Type: Clinical Research
Abstract
INTRODUCTION:
Understanding how the influence of meal food order on subjective appetite and satiety is critical for developing dietary interventions that address obesity and metabolic disorders. Previous studies primarily examined the impact of food order on appetite, hunger, and satiety ratings on omnivorous diets. The impact of food order within vegetarian meals on real-time hunger, appetite, satiety, and fullness perceptions remains underexplored.
METHODS:
An unblinded, randomized parallel-group study evaluated the effect of vegetarian meal food order on perceptual ratings. Fasted participants underwent body composition measurements, followed by baseline assessments of blood glucose and perceptual responses (hunger, appetite, satiety, fullness; 0-10 Likert scale). A standardized vegetarian meal with two components (150 g edamame mixed with 10 g butter and 1/8 tsp salt; 150 g long-grain white rice) was provided in a randomized sequence. The same variables were measured postprandially at 30, 60, and 90 minutes. Perceptual data were analyzed using the area-under-the-curve (AUC) trapezoidal method. 60 participants are planned for participation (n=34/60). Mann-Whitney U testing was used to evaluate between-group differences.
RESULTS:
There were no statistically significant between-group differences in AUC for perceptual data (all p >.05). Satiety indicated a greater difference between groups without any statistical significance (U=123.5; p=0.474). Satiety AUC was 508±143 for rice first and 551±203 for edamame first. Postprandial blood glucose peaked at 30 minutes with no between-group differences (rice first: 124±26 mg/dL; edamame first: 119±28 mg/dL; p >.05).
CONCLUSION:
These findings indicate that there is no clear significant influence of meal ordering on subjective appetite and satiety among current participants. This could be due to a lack of differences in glycemic and insulin responses. There is a need to complete this study and to conduct further research to better understand vegetarian eating patterns on appetite and hunger perceptions.
Understanding how the influence of meal food order on subjective appetite and satiety is critical for developing dietary interventions that address obesity and metabolic disorders. Previous studies primarily examined the impact of food order on appetite, hunger, and satiety ratings on omnivorous diets. The impact of food order within vegetarian meals on real-time hunger, appetite, satiety, and fullness perceptions remains underexplored.
METHODS:
An unblinded, randomized parallel-group study evaluated the effect of vegetarian meal food order on perceptual ratings. Fasted participants underwent body composition measurements, followed by baseline assessments of blood glucose and perceptual responses (hunger, appetite, satiety, fullness; 0-10 Likert scale). A standardized vegetarian meal with two components (150 g edamame mixed with 10 g butter and 1/8 tsp salt; 150 g long-grain white rice) was provided in a randomized sequence. The same variables were measured postprandially at 30, 60, and 90 minutes. Perceptual data were analyzed using the area-under-the-curve (AUC) trapezoidal method. 60 participants are planned for participation (n=34/60). Mann-Whitney U testing was used to evaluate between-group differences.
RESULTS:
There were no statistically significant between-group differences in AUC for perceptual data (all p >.05). Satiety indicated a greater difference between groups without any statistical significance (U=123.5; p=0.474). Satiety AUC was 508±143 for rice first and 551±203 for edamame first. Postprandial blood glucose peaked at 30 minutes with no between-group differences (rice first: 124±26 mg/dL; edamame first: 119±28 mg/dL; p >.05).
CONCLUSION:
These findings indicate that there is no clear significant influence of meal ordering on subjective appetite and satiety among current participants. This could be due to a lack of differences in glycemic and insulin responses. There is a need to complete this study and to conduct further research to better understand vegetarian eating patterns on appetite and hunger perceptions.