The American journal of clinical nutrition · 2010
Eating in the absence of hunger in adolescents: intake after a large-array meal compared with that after a standardized meal.
СтатьяРандомизированное исследованиеПоддержка NIH: внешняя программаResearch Support, N.I.H., IntramuralПоддержка правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Shomaker Lauren B, Tanofsky-Kraff Marian, Zocca Jaclyn M, Courville Amber, Kozlosky Merel, Columbo Kelli M, Wolkoff Laura E, Brady Sheila M, Crocker Melissa K, Ali Asem H, Yanovski Susan Z, Yanovski Jack A
Аннотация
BACKGROUND: Eating in the absence of hunger (EAH) is typically assessed by measuring youths' intake of palatable snack foods after a standard meal designed to reduce hunger. Because energy intake required to reach satiety varies among individuals, a standard meal may not ensure the absence of hunger among participants of all weight strata.
OBJECTIVE: The objective of this study was to compare adolescents' EAH observed after access to a very large food array with EAH observed after a standardized meal.
DESIGN: Seventy-eight adolescents participated in a randomized crossover study during which EAH was measured as intake of palatable snacks after ad libitum access to a very large array of lunch-type foods (>10,000 kcal) and after a lunch meal standardized to provide 50% of the daily estimated energy requirements.
RESULTS: The adolescents consumed more energy and reported less hunger after the large-array meal than after the standardized meal (P values < 0.001). They consumed ≈70 kcal less EAH after the large-array meal than after the standardized meal (295 ± 18 compared with 365 ± 20 kcal; P < 0.001), but EAH intakes after the large-array meal and after the standardized meal were positively correlated (P values < 0.001). The body mass index z score and overweight were positively associated with EAH in both paradigms after age, sex, race, pubertal stage, and meal intake were controlled for (P values ≤ 0.05).
CONCLUSION: EAH is observable and positively related to body weight regardless of whether youth eat in the absence of hunger from a very large-array meal or from a standardized meal. This trial was registered at clinicaltrials.gov as NCT00631644.
OBJECTIVE: The objective of this study was to compare adolescents' EAH observed after access to a very large food array with EAH observed after a standardized meal.
DESIGN: Seventy-eight adolescents participated in a randomized crossover study during which EAH was measured as intake of palatable snacks after ad libitum access to a very large array of lunch-type foods (>10,000 kcal) and after a lunch meal standardized to provide 50% of the daily estimated energy requirements.
RESULTS: The adolescents consumed more energy and reported less hunger after the large-array meal than after the standardized meal (P values < 0.001). They consumed ≈70 kcal less EAH after the large-array meal than after the standardized meal (295 ± 18 compared with 365 ± 20 kcal; P < 0.001), but EAH intakes after the large-array meal and after the standardized meal were positively correlated (P values < 0.001). The body mass index z score and overweight were positively associated with EAH in both paradigms after age, sex, race, pubertal stage, and meal intake were controlled for (P values ≤ 0.05).
CONCLUSION: EAH is observable and positively related to body weight regardless of whether youth eat in the absence of hunger from a very large-array meal or from a standardized meal. This trial was registered at clinicaltrials.gov as NCT00631644.