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

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

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Published in:Pediatric obesity 2024-08, p.e13165
Main Authors: Bakhsh, Jomanah A, Vu, My H, Salvy, Sarah Jeanne, Goran, Michael I, Vidmar, Alaina P
Format: Article
Language:English
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Summary:The precise mechanisms underlying the health benefits of time-restricted eating (TRE) are unclear, particularly in adolescents.BACKGROUNDThe precise mechanisms underlying the health benefits of time-restricted eating (TRE) are unclear, particularly in adolescents.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.OBJECTIVESThis 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.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.METHODSParticipants (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.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.RESULTSThe 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
ISSN:2047-6310
2047-6310
DOI:10.1111/ijpo.13165