Effects of 8-h time-restricted eating on energy intake, dietary composition and quality in adolescents with obesity

IF 2.7 3区医学 Q1 PEDIATRICS Pediatric Obesity Pub Date : 2024-08-26 DOI:10.1111/ijpo.13165

Jomanah A. Bakhsh, My H. Vu, Sarah Jeanne Salvy, Michael I. Goran, Alaina P. Vidmar

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Abstract

Background

The precise mechanisms underlying the health benefits of time-restricted eating (TRE) are unclear, particularly in adolescents.

Objectives

This secondary analysis examines the impact of 8-h TRE on energy intake, dietary composition and quality in adolescents with obesity, using data from a 12-week randomized, controlled pilot trial.

Methods

Participants (14–18 years with BMI >95th percentile) were assigned to either 8-h TRE with real-time or blinded continuous glucose monitoring or a control group with a 12+ h eating window. Dietary intake was analysed using the Nutrient Data System Recall 24-h Dietary Recall and the Healthy Eating Index (HEI-2020) for assessing diet quality.

Results

The study included 44 participants (32 TRE, 12 control), predominantly female and Hispanic/Latino. The TRE group showed a significant reduction in mean energy intake (−441 kcal/day), carbohydrates (−65 g/day), added sugar (−19 g/day) and fat (−19 g/day), while the control group had a similar reduction in energy intake (−437 kcal/day) and carbohydrates (−63 g/day), but no significant changes in added sugar or fat. The percent energy intake from protein increased more in the TRE group compared to the control. The TRE group experienced a significant improvement in diet quality, with a 6.3-point increase in HEI-2020 score; however, between-group comparisons were not statistically significant.

Conclusion

There were no significant differences between the TRE and control groups in energy intake, dietary composition or quality. Future research with larger sample sizes is needed to further evaluate the potential impact of TRE on dietary behaviours.

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8 小时限时进食对肥胖青少年能量摄入、膳食结构和质量的影响。

背景：限时进食（TRE）有益健康的确切机制尚不清楚，尤其是对青少年而言：这项二次分析利用一项为期 12 周的随机对照试点试验的数据，研究 8 小时限时进食对肥胖青少年的能量摄入、膳食结构和质量的影响：参与者（14-18 岁，体重指数大于第 95 百分位数）被分配到采用实时或盲法连续葡萄糖监测的 8 小时 TRE 组或采用 12+ 小时进食时间窗的对照组。采用营养数据系统 24 小时饮食回顾和健康饮食指数（HEI-2020）对饮食摄入量进行分析，以评估饮食质量：研究包括 44 名参与者（32 名 TRE，12 名对照组），主要为女性和西班牙裔/拉丁美洲人。TRE 组的平均能量摄入量（-441 千卡/天）、碳水化合物（-65 克/天）、添加糖（-19 克/天）和脂肪（-19 克/天）均有显著减少，而对照组的能量摄入量（-437 千卡/天）和碳水化合物（-63 克/天）也有类似减少，但添加糖和脂肪没有显著变化。与对照组相比，TRE 组从蛋白质中摄入的能量百分比增加较多。TRE组的饮食质量有了明显改善，HEI-2020评分提高了6.3分；但组间比较无统计学意义：结论：TRE 组和对照组在能量摄入、膳食组成或质量方面没有明显差异。今后需要进行样本量更大的研究，以进一步评估 TRE 对饮食行为的潜在影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Pediatric Obesity PEDIATRICS-

CiteScore

7.30

自引率

5.30%

发文量

117

审稿时长

6-12 weeks

期刊介绍： Pediatric Obesity is a peer-reviewed, monthly journal devoted to research into obesity during childhood and adolescence. The topic is currently at the centre of intense interest in the scientific community, and is of increasing concern to health policy-makers and the public at large. Pediatric Obesity has established itself as the leading journal for high quality papers in this field, including, but not limited to, the following: Genetic, molecular, biochemical and physiological aspects of obesity – basic, applied and clinical studies relating to mechanisms of the development of obesity throughout the life course and the consequent effects of obesity on health outcomes Metabolic consequences of child and adolescent obesity Epidemiological and population-based studies of child and adolescent overweight and obesity Measurement and diagnostic issues in assessing child and adolescent adiposity, physical activity and nutrition Clinical management of children and adolescents with obesity including studies of treatment and prevention Co-morbidities linked to child and adolescent obesity – mechanisms, assessment, and treatment Life-cycle factors eg familial, intrauterine and developmental aspects of child and adolescent obesity Nutrition security and the "double burden" of obesity and malnutrition Health promotion strategies around the issues of obesity, nutrition and physical activity in children and adolescents Community and public health measures to prevent overweight and obesity in children and adolescents.