Type: Randomized controlled trial
Registration: PMCID: PMC9536325
Status: Published
Tags: Cardiometabolic, Chrononutrition, First responders, RCT, Time‑restricted eating
External URL: https://pmc.ncbi.nlm.nih.gov/articles/PMC9536325/
RCT (n=137) found a 10‑hour eating window feasible in 24‑h shift firefighters and associated with improved cardiometabolic markers vs control.
Participants randomized in this trial whether keeping most calories in a daytime window, with minimal overnight intake, showed sleep, alertness, recovery, and metabolic markers for night‑shift workers and night owls. The signal puts timing—rather than only calories or macros—at the center of how bodies respond to working at night. For people who work nights, that frames an everyday choice (when you eat, how you light the end of a shift, how rest is split) as part of the mechanism, not just routine.
PubMed: https://pubmed.ncbi.nlm.nih.gov/36198291/