Terms of use

Last updated 25 October 2026

Full terms of use are being prepared. Until they are published, these are the basics.

• Fasted is a personal journal for adults aged 18 and over.
• It is a tracking tool, not medical advice. It does not diagnose, treat or measure what happens in your body; the fasting stages it shows are typical averages by time fasted.
• You decide when to start and finish a fast, and you can finish at any time. Talk to a clinician before prolonged fasting, and stop if you feel unwell.
• Electrolyte logs record the amounts on your own labels. Fasted never recommends a supplement or a dose.
• You can delete your account, and the journal on your phone, at any time.