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Fasting Window
Calculator
Choose your fasting protocol and first meal time. Get your exact eating window, fasting start, and next break-fast time.
Your Details
The most popular protocol. Balanced and sustainable.
When you break your fast each day
Your Daily Schedule
Eating Window12:00 PM → 8:00 PM
Fasting Starts8:00 PM
Break Fast (Tomorrow)12:00 PM
Total Fasting16 hours
8 hour eating window · 16 hour fast. Repeat daily for best results.
Make It Work
Fasting done right.
01
Start with 14:10 before jumping to 16:8. Earn the tighter window.
02
Break your fast with protein and whole foods - not a carb-heavy meal.
03
Water, black coffee and plain tea are fine during the fasting window.
04
Keep your eating window consistent day to day. Consistency beats perfection.
05
Train at the end of your fast for better insulin sensitivity.