Kral Tanja V E, Moore Reneé H, Stunkard Albert J, Berkowitz Robert I, Stettler Nicolas, Stallings Virginia A, Tanaka Leeann M, Kabay April C, Faith Myles S
Division of Biostatistics, Center for Clinical Epidemiology and Biostatistics, Department of Psychiatry, Philadelphia, PA, USA.
J Am Diet Assoc. 2010 Dec;110(12):1896-900. doi: 10.1016/j.jada.2010.09.009.
Eating in the absence of hunger is a risk factor for overeating during childhood. The objective of this study was to examine eating in the absence of hunger in adolescents based on their familial predisposition to obesity and current weight status. Thirty-one subjects (16 male, 15 female), who were 13 years of age and born at low risk or high risk for obesity, consumed lunch to fullness. After lunch, subjects had access to different snacks for 15 minutes. Eating in the absence of hunger referred to energy intake from the snacks. Low-risk females consumed two and a half times more calories from snacks than high-risk females and twice as many calories as low-risk and high-risk males when expressed as an individualized percentage of daily allowance for discretionary calories. Normal-weight females consumed two and a half times more calories from snacks than obese females and normal-weight males. The association between eating in the absence of hunger and weight and obesity risk status depended on adolescents' sex and could reflect emerging developmental differences, such as dieting or social desirability.
在不饿的时候进食是儿童期暴饮暴食的一个风险因素。本研究的目的是根据青少年的肥胖家族易感性和当前体重状况，研究他们在不饿的时候的进食情况。31名受试者（16名男性，15名女性），年龄为13岁，出生时肥胖风险低或高，进食午餐直至饱腹。午餐后，受试者有15分钟时间可以享用不同的零食。在不饿的时候进食是指从零食中摄入的能量。以个性化的每日 discretionary calories 摄入量百分比表示时，低风险女性从零食中摄入的卡路里比高风险女性多两倍半，是低风险和高风险男性的两倍。正常体重的女性从零食中摄入的卡路里比肥胖女性和正常体重的男性多两倍半。在不饿的时候进食与体重及肥胖风险状况之间的关联取决于青少年的性别，可能反映出如节食或社会期望等新出现的发育差异。
