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Caloric compensation and eating in the absence of hunger in 5- to 12-y-old weight-discordant siblings.


ABSTRACT: An impaired ability to compensate for calories and increased eating in the absence of hunger (EAH) has been associated with increased energy intake and weight gain in unrelated children.The aims of this study were to compare caloric compensation [the percentage compensation index (%COMPX)] and EAH in weight-discordant siblings aged 5-12 y.In a crossover, behavioral genetics design, 47 same-sex sibling pairs (53% female, 55% full siblings) were served dinner once a week for 3 wk. Across conditions, siblings were served the same dinner, but 25 min before dinner, they either consumed in full or did not consume 1 of 2 preloads that varied in energy density (ED; 0.57 or 0.97 kcal/g). On the day when no preload was consumed, EAH was assessed after dinner and defined as the number of calories consumed from snacks.Overweight/obese siblings undercompensated [%COMPX: -48.8 ± 56.3 (mean ± SEM)] and therefore overate after the high-ED preload, whereas normal-weight siblings showed accurate compensation (%COMPX: 101.3 ± 51.9; P = 0.03). Furthermore, overweight/obese siblings consumed 34% more calories (93 kcal) in the absence of hunger than did normal-weight siblings (P = 0.01). Within-pair resemblances for %COMPX and EAH were stronger for full siblings (P < 0.049) than for half siblings (P > 0.23).An impaired ability to regulate short-term energy intake, which includes incomplete adjustment for calorie differences in a preload and eating when satiated, may represent a behavioral phenotype for obesity in children. Future studies should test whether teaching children to focus on internal satiety cues may prevent at-risk children from overeating.

SUBMITTER: Kral TV 

PROVIDER: S-EPMC3417216 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature

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Caloric compensation and eating in the absence of hunger in 5- to 12-y-old weight-discordant siblings.

Kral Tanja V E TV   Allison David B DB   Birch Leann L LL   Stallings Virginia A VA   Moore Reneé H RH   Faith Myles S MS  

The American journal of clinical nutrition 20120801 3


<h4>Background</h4>An impaired ability to compensate for calories and increased eating in the absence of hunger (EAH) has been associated with increased energy intake and weight gain in unrelated children.<h4>Objective</h4>The aims of this study were to compare caloric compensation [the percentage compensation index (%COMPX)] and EAH in weight-discordant siblings aged 5-12 y.<h4>Design</h4>In a crossover, behavioral genetics design, 47 same-sex sibling pairs (53% female, 55% full siblings) were  ...[more]

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