Find your routine
What matters most to you right now?
Select all that apply. We'll build the routine around them.
About 60 seconds. No email needed.
Find your routine
How do you fast today?
Be honest, not aspirational. The routine should fit the fast you actually run.
Find your routine
On fasting days, do you notice any of these?
Select all that apply.
Find your routine
Where does your fast get hard?
Select all that apply.
Your routine
Your routine
Nothing you told us says you need a supplement yet. Learn your hours with Meridian first. When your fasts get longer or the deep hours start to bite, Trace and Core are here.

Trace
$49.00
Electrolytes and betaine, dosed for what a fast flushes. Zero sugar, fast-safe.*
Full formula, doses, and sourcesAdd to cart
Core
$39.00
The daily foundation for the fasted state: energy, focus, and the hunger wall.*
Full formula, doses, and sourcesAdd to cartSave your routine
Leave your email and we will keep your routine tied to it, ready when you are.
Meridian
The free app that reads your fast hour by hour. No account, no ads, private.
Meet the appWill Trace break my fast? No. Zero sugar, zero calories, built for the middle of the fast.
Want more information? Start where the quiz points and adjust after your first few weeks of fasting. If the routine still does not fit, our team can help: Support
This quiz suggests a routine, it does not diagnose anything. Kētos products are dietary supplements. If you take medication or manage a condition, talk to your doctor before fasting. *These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.

