Achieving Weight Loss When Practicing Time-Restricted Eating: A Longitudinal Study of Experiences Among Individuals...

Area of Science:

• Metabolism and Endocrinology
• Behavioral Science
• Nutritional Science

Background:

• Overweight and type 2 diabetes (T2D) risk are significant public health concerns.
• Time-restricted eating (TRE) is a dietary strategy with potential for weight management.
• Understanding participant experiences is crucial for optimizing TRE interventions.

Purpose of the Study:

• To explore participant experiences with time-restricted eating (TRE) during a 6-month intervention and follow-up.
• To identify factors associated with successful weight loss in individuals with overweight and T2D risk.
• To analyze the longitudinal progression of TRE practice and its impact on weight management.

Main Methods:

• Qualitative analysis of semi-structured interviews from the RESET trial.
• Quantitative body weight measurements at baseline, post-intervention, and follow-up.
• Content analysis using the concept of 'career' to examine TRE adoption and maintenance.

Main Results:

• High weight loss (≥5.1%) correlated with structured routines, consistent meals, and partner support.
• Participants motivated by health benefits achieved better weight loss than those solely focused on weight reduction.
• Low/no weight loss was linked to irregular routines, low support, and an "all-or-nothing" approach to TRE.

Conclusions:

• Successful TRE for weight loss necessitates flexibility, tailored guidance for routine adaptation, and enhanced social support.
• Individualized approaches to TRE are vital for long-term adherence and achieving desired health outcomes.
• Addressing psychological factors, such as guilt and goal framing, is important for TRE sustainability.