Your intermittent fasting window, calculated. Enter when the fast started and your plan — see exactly when to eat. No signup, no fluff, everything stays in your browser.
The window always closes where the fast began — one number to remember, one clock to watch.
Long fasts flush sodium, potassium, and magnesium — the tired, headachy part of fasting is usually electrolytes, not hunger. Plain water isn't the full answer.
Fasting-friendly electrolytes → Coffee & tea for the fast hours →
Hitting your daily protein in an 8-hour window is the hard part — SuppCalc's protein calculator does that math.
Skipped breakfast without calling it anything? Find your plan. Last bite yesterday, first bite today.