Does walking break a fast?
Does walking break a fast? No. Walking uses energy but doesn't add any food or drink calories, so it doesn't end a fast.
Not medical advice. Fasting is not right for everyone. If you are under 18, pregnant or breastfeeding, have a history of disordered eating, or have a medical condition (especially diabetes or anything involving medication), talk to a doctor before fasting. Read the full safety page.
Walking while fasting: practical points
- Go easy at first. A relaxed walk is different from a hard workout. If you feel dizzy, faint or unwell, stop, sit down and eat.
- Athletes may struggle to fuel. Mayo Clinic notes that athletes can find it hard to fuel properly while fasting.
- If you have diabetes or take medication, talk to your doctor first. Johns Hopkins Medicine raises a concern about unsafe low blood sugar during fasting.
- Walking after you eat is fine too. The timing is about what suits you.
How StepFast handles it
StepFast compares your steps with your daily goal. When you're short, it leads with walking: at 100 steps a minute, every 1,000 steps is about 10 minutes. On days you can't walk, and only if fasting is on for you, it can suggest a later first meal instead (about 45 minutes per 1,000 steps), never beyond 18 hours of total fasting. See how it works.