There needs to be something with calories to metabolize to end a fasting period, coffee has low/no calories, you can have up to a fifty calories before the fast

There needs to be something with calories to metabolize to end a fasting period, coffee has low/no calories, you can have up to a fifty calories before the fasting is broken. Caffeine is metabolized, but has no caloric value so I don't think it would count. https://jamesclear.com/reader-mailbag-intermittent-fasting https://jamesclear.com/reader-mailbag-intermittent-fasting