Can I work out while fasting?

Last reviewed · Jun 29, 2026 · Not medical advice
Quick answer

Some people can exercise while fasting, but intensity, experience, hydration, and how you feel matter.

Step by step

01 Start with low or moderate intensity.
02 Hydrate and stop if dizzy.
03 Place harder workouts near the eating window if needed.

The longer answer

Health.com notes exercise while fasting depends on energy levels, goals, and body response. For most users, lighter workouts are easier to test than intense training while new to fasting.

Tip

A walk is still a win.

Common mistake

Forcing high-intensity training while lightheaded.

Track in the app

Track activity type, fast duration, water, caffeine, energy, and completion.

Safety note
Educational only. People who are pregnant, breastfeeding, under 18, have diabetes, take glucose-affecting medication, have a history of eating disorders, or feel unwell should speak with a qualified clinician before fasting.

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