Journal
APPETITE
Volume 191, Issue -, Pages -Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.appet.2023.107063
Keywords
Appetite; Food reward; Food preference; Paediatric obesity; Energy intake; Macronutrients
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The energy content of fixed meals has a more reliable effect on postprandial appetite in adolescents with obesity, even without significant changes in macronutrient distribution.
Purpose: The energy and macronutrient composition of a meal has been shown to influence postprandial appetitive responses, but it is not clear how energy content independent of macronutrient distribution affects postprandial appetite in adolescents with obesity. Extracting data from a primary study testing the effect of energy turnover on appetite, this secondary analysis assessed how fixed meals varying in energy content with similar macronutrient distributions influences postprandial appetite sensations and food reward.Methods: Using a randomised, counterbalanced crossover design, N = 14 adolescents with obesity (M-age = 12.71, SDage = 0.99; 10 female) consumed fixed lunch meals with similar macronutrient content starting at 750 kcal in energy and progressively increasing by 250 kcal on three different test days. Liking and wanting for food images varying in fat and taste were assessed at baseline and immediately after meal consumption. Appetite sensations were assessed in half-hour intervals from baseline to 1-h post-meal.Results: The area under the curve for subjective hunger (p < .001, omega = 0.36), desire to eat (p < .001, omega = 0.54), and prospective food consumption (p = .004, omega = 0.32) were significantly lower after consumption of the higher calorie meals relative to the lowest. Explicit wanting for sweet foods increased after intake of the intermediate calorie meal yet decreased after the highest calorie meal (p = .014, omega = 0.09). Conversely, implicit wanting sweet bias increased after consumption of the test meal independent of energy content (p < .001, omega = 0.15).Conclusion: The consumption of additional calories without a meaningful change in macronutrient distribution may affect appetite sensations more reliably than hedonic responses to energy-dense foods in adolescents with obesity.
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