Prior studies evaluating a single meal in children characterized an “obesogenic” style of eating marked by larger bites and faster eating. It is unclear if this style is consistent across portion sizes within children so we examined eating behaviors in 91 children (7–8 years, 45 F) without obesity (BMI<90th percentile). Children consumed 4 meals in the laboratory consisting of chicken nuggets, macaroni, grapes, and broccoli that varied in portion size (100%, 133%, 166%, 200%) with a maximum of 30 min allotted per meal. Anthropometrics were assessed using age and sex adjusted body mass index (BMI) percentile and dual energy x-ray absorptiometry. Bites, sips, active eating time, and meal duration were coded from meal videos; bite size (kcal and g/bite), proportion of active eating (active eating time/meal duration), and eating rate (kcal and g/meal duration) were computed. Intraclass correlation coefficients (ICC) showed that most eating behaviors were moderately consistent across portions (>0.50). The consistency of associations between eating behaviors and total meal intake and adiposity were assessed with general linear models adjusted for food liking, pre-meal fullness, age, and sex. Across all portions, more bites, faster eating rate, and longer meal duration were associated with greater intake. While higher BMI percentile was associated with faster eating rates across all meals, greater fat mass index was only associated with faster eating at meals with portions typical for children (i.e., 100% and 133%). In a primarily healthy weight sample, an ‘obesogenic’ style of eating was a consistent predictor of greater intake across meals that varied in portion size. The consistent relationship of these behaviors with intake makes them promising targets to reduce overconsumption.

中文翻译：

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儿童饮食行为始终与份量不同的膳食摄入量相关

之前的研究评估了儿童的单餐，其特征是“致肥胖”的饮食方式，其特点是吃得更大、吃得更快。目前还不清楚这种风格在儿童的食量大小中是否一致，因此我们检查了 91 名没有肥胖（BMI<90%）的儿童（7-8 岁，45 F）的饮食行为。孩子们在实验室里吃了 4 顿饭，包括鸡块、通心粉、葡萄和西兰花，份量不同（100%、133%、166%、200%），每顿饭最多分配 30 分钟。使用年龄和性别调整后的体重指数 (BMI) 百分位数和双能 X 射线吸收测定法来评估人体测量学。咬口、啜饮、主动进食时间和进餐持续时间均由进餐视频编码；计算一口大小（千卡和克/口）、主动进食比例（主动进食时间/进餐时间）和进食率（千卡和克/进餐时间）。组内相关系数 (ICC) 显示，大多数饮食行为在各部分之间具有中等程度的一致性 (>0.50)。使用根据食物喜好、餐前饱腹感、年龄和性别进行调整的一般线性模型来评估饮食行为与总膳食摄入量和肥胖之间关联的一致性。在所有部分中，更多的咬口、更快的进食速度和更长的进餐时间与更多的摄入量相关。虽然较高的 BMI 百分位数与所有餐食的更快进食速度相关，但较高的脂肪质量指数仅与儿童典型餐食的更快进食速度相关（即 100% 和 133%）。在主要健康体重的样本中，“致肥胖”的饮食方式是不同份量的膳食摄入量增加的一致预测因素。这些行为与摄入量的一致关系使它们成为减少过度消费的有希望的目标。