Updated October 2026: the Heads Up fasting timer now lives at /tools/fasting-timer, so we added where to find it, refreshed the guidance for practitioners and replaced the retired help article and sign-up links.
Enhance Your Clients' Fasting Experience With the Heads Up Fasting Timer
Where to find it now: the Heads Up fasting timer has moved. You can use the online fasting timer on our website.
When we revamped the fasting timer in May 2024, the goal was to make fasting more intuitive and insightful for anyone running a fasting program, from intermittent fasting to supervised extended fasts.
Here's what the 2024 update to the fasting timer introduced.
- Refined User Experience: A more user-friendly interface, making interaction with the fasting timer effortless.
- Flexible Count Up or Count Down Options: Track time during a fast by either counting up from the start of the fast or counting down to the fasting goal.
- Customizable Preset Fasts: Adaptable preset fasts designed to fit different fasting schedules, whether intermittent or extended.
- Scheduled Future Fasting: Set future fasts to automatically start counting at a chosen time, so clients can plan ahead and stay on track.
- Health Data Alongside the Timer: Glucose and ketone readings from connected devices shown next to the fasting timer, for a more complete view of how a fast is going.
- Visualize Progress with Reports: Fasting patterns tracked and charted over time for deeper insights.
- Fasting Summary Stats on Dashboard: Quick access to recent fasting statistics in a dashboard summary.
- Cross-Platform Compatibility: At launch, these features were available on both the iOS mobile app and the web.
Tracking Fasting for Your Clients
A timer tells you how long a client has fasted. To know whether a fasting protocol is working, you also need to see what happens to their glucose, ketones, weight and labs over weeks and months. Heads Up unifies labs, wearables, medical devices and EHR data in one longitudinal patient record, with 100+ integrations including CGMs like Dexcom, ketone meters like Keto-Mojo, and labs like Labcorp and Quest. You can set up a fasting protocol as a program with adherence tracking, use threshold alerts to flag readings that need attention, and review AI pre-visit briefs that summarize what changed since the last visit. Clients use the companion app on iOS and Android.
If you are looking for guidance on what to track during a fast, read our guide to therapeutic fasting and how to track it for best results. For product how-to articles, visit the Heads Up help center.
Ready to elevate your fasting programs?
See how Heads Up tracks fasting, glucose and ketones for your clients: request a demo.
See how clinics use Heads Up
Unify labs, wearables and EHR data into one AI-assisted view. Book a walkthrough tailored to your practice.
