18:6 Intermittent Fasting Schedule Calculator
Calculate your 18:6 fasting window for deeper ketosis and autophagy.
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Frequently Asked Questions — Intermittent Fasting Calculator
How is 18:6 different from 16:8?+
18:6 adds 2 more fasting hours, typically resulting in stronger autophagy activation and deeper fat ketosis during the fasting window.
When does autophagy start at 18:6?+
Autophagy significantly increases around 16-18 hours of fasting. The 18:6 protocol captures a meaningful autophagy window toward the end of the fast.
Can beginners do 18:6?+
Beginners should start with 16:8 for 2-4 weeks before progressing to 18:6. The 2-hour reduction in eating window can be challenging for those new to IF.