Early vs. Late Time-restricted eating: The golden key to a leaner body, balanced metabolism, and restful sleep for healthy young adults

Abstract This randomized crossover trial evaluated the effects of early (eTRE) and late (lTRE) time-restricted eating on healthy young adults' body weight, metabolism, and sleep. The study recruited healthy participants and rigorously controlled confounders to ensure accuracy and reliability. Both eTRE and lTRE facilitated weight loss and improved metabolic markers like blood pressure and glycemic control. Notably, eTRE showed greater weight and muscle mass reduction, while lTRE stabilized body fat content. These distinct effects highlight the need for tailored TRE approaches. Neither eTRE nor lTRE significantly influenced insulin, lipids, or inflammatory markers. Intriguingly, lTRE reduced blood glucose fluctuation, aligning with its cardiovascular benefits. This novel finding underscores TRE's potential in maintaining glycemic and cardiovascular health. In summary, this study provides valuable insights into TRE's effects on body composition, metabolism, and sleep, emphasizing the need to explore optimal TRE implementations further to maximize health benefits.