Everyone wants the fat-burning, autophagy-triggering state fasting produces. Almost no one knows exactly how long to fast, when to break it, or how to confirm they got there. We fix that in five questions — free, no catch.
Fasting isn't binary. Your body moves through distinct, sequential states — each unlocking a different benefit. Your protocol tells you which ones you're targeting.
Insulin is elevated, digestion is active, glucose is the primary fuel source. No fat-burning advantage yet.
Liver glycogen stores begin drawing down. Insulin falls. The body starts preparing to shift fuel sources.
Fat oxidation increases as glycogen runs low. Free fatty acids and early ketone production begin.
Ketone production rises meaningfully. This is the window most 16:8 and 18:6 protocols are built to reach.
Cellular cleanup processes upregulate. Extended and OMAD protocols target this zone specifically for longevity.
We'll match your tolerance, schedule and goal to one protocol — 12:12 through OMAD — and hand you a single printable page.
Print it, pin it, follow it. Recalculate anytime by retaking the quiz.
Take the quiz, get your personalized protocol, and get occasional science-backed fasting tips in your inbox. No product, no pitch — just the tool.