Time-restricted eating, often abbreviated TRE, is a pattern that keeps all calorie intake inside a defined daily window, commonly 8 to 12 hours, with only water and unsweetened drinks outside that window. It is a clock-aligned form of intermittent fasting and is distinct from total-calorie restriction.
Why it matters for stack timing
A shorter eating window shrinks the slots where food-dependent supplements can be taken with a real meal, and it removes some of the small-snack opportunities that protocols sometimes assume. Coordinating an eating window with the rest of your dose windows keeps absorption predictable.
Common windows
- 12:12. Most lifestyles can hold this without effort and it still helps protect sleep from late eating.
- 10:14. A common middle ground for adults aiming for circadian alignment.
- 8:16. Tighter, useful for some metabolic goals, and harder to combine with social meals.
What it does and does not do
TRE is best supported for protecting sleep, lowering late-night calorie intake, and stabilizing meal-time anchors. Effects on body composition and metabolic markers depend heavily on overall diet quality and total intake. It is not a fat-burning trick on its own.
Field-level operating notes
Earlier eating windows and a 2 to 3 hour gap before lights-out often keep the bedtime dose window easier to interpret. Fat-soluble nutrients usually pair with the first meal that contains fat, and electrolyte-sensitive compounds are easier to compare when their timing stays inside the window.
Cross-site references
Uncertainty
- Evidence is limited on long-term effects across years and broad populations.
- Evidence is limited on which window length is best for any given goal.
How this appears in Unfair
Unfair lets you mark your eating window as a context tag so food-dependent supplements default to slots inside it and trend reads can separate fasted days from fed days.
Clinical safety note
TRE needs clinician guidance in pregnancy, eating-disorder history, type 1 diabetes, or medication regimens that require food.