Or send it from Health with a Shortcut — see docs/HEALTH_SYNC.md.
00:00:00
0% of target
Fed → Early Fasting
Started
Target
Next phase—
—
⚡
Booster — accelerate this phase
Avoid right now
Educational information only, not medical advice. Talk to a doctor before extended
fasting, and especially before fasting on any medication.
Fast complete
kg
Edit fast
Before you start
This is a timer and a set of notes, not medical advice. The phase timings are
a reasonable summary of the research, not a promise about your body.
Talk to a doctor before extended fasting — and before any fasting at all if
you're pregnant or breastfeeding, under 18, underweight, diabetic, have a
history of disordered eating, or take any regular medication. Doses for
blood-pressure, diabetes and thyroid drugs often need adjusting when you stop
eating.
Stop a fast for fainting, chest pain, palpitations, confusion or vision
changes. Those are stop signals, not milestones.