Circadian Consistency

Many people may eat across 14 to 15 hours when small caloric intakes are counted, meaning they are not truly practicing time restriction. The protocol depends on consistent eating times because irregular food timing undermines circadian rhythm. Peripheral clocks in the liver, pancreas, and gut synchronize to food timing. Circadian systems recalibrate through consistent timing. Sleep, activity, and nutrition reinforce circadian rhythms when timed within optimal windows. Irregular food arrival can impair metabolism, disrupt sleep, and elevate inflammation. Timing outside preferred windows can disrupt circadian rhythms and increase health risks. Two late nights per week can partially undo circadian recalibration from the rest of the week.