How many studies support Time-Restricted Eating?

Time-restricted eating (TRE) is supported by several well-designed randomized controlled trials, including a large NEJM trial that found calorie restriction with or without TRE, and a JAMA trial on early time-restricted eating, both showing meaningful weight loss but generally similar results whether or not meals were also restricted to a specific window. That's backed by 9 published studies in Vitaebase's database, including 5 randomized controlled trials and 6 meta-analyses, the most recent from 2026 -- a fairly substantial body of research for a single topic.