Stopping eating 3 hours before bedtime allows the body to switch from 'digestion' mode to cellular 'repair and regeneration' mode.

noli's read

This advice is based on the concept of chrononutrition and circadian rhythms. It is accurate that digestion activates metabolic processes that can conflict with nocturnal repair mechanisms, such as autophagy, which is better documented in animal models (meta-analysis, Nature Reviews Molecular Cell Biology). In humans, observational studies and randomized controlled trials (RCTs) suggest that time-restricted eating improves insulin sensitivity and sleep quality. However, the idea of a strict binary switch to a 'repair mode' exactly 3 hours after the last meal is a mechanistic simplification: the body is capable of managing several processes simultaneously. While the metabolic advantage is supported by strong evidence, the 'repair' aspect specific to this precise interval remains largely explored in the laboratory and requires further clinical validation before it can be generalized. It is therefore a relevant strategy for optimizing metabolic health, although its effectiveness is nuanced by meal composition and individual metabolism.

the sources

1. 1Yoshitake R, Park I, Ogata H, Omi N. 2023