What can I drink while fasting?
Quick answer
During most intermittent fasts, water, plain tea, and black coffee are the safest default drinks.
Step by step
01 Make a default fasting drink list before the day starts.
02 Keep water nearby and choose unsweetened coffee or tea if needed.
03 Move sweetened or calorie-containing drinks into your eating window.
The longer answer
Johns Hopkins lists water and zero-calorie drinks such as black coffee and tea as fasting-window options. The practical rule is simple: avoid calories, sugar, protein, fat, and sweetened cafe-style drinks during the fast.
Tip
If you need flavor, try plain sparkling water or unsweetened tea before reaching for sweeteners.
Common mistake
Treating all zero-sugar drinks as equally helpful; some can increase cravings.
Track in the app
Track the drink or first meal, fasting duration, hunger, energy, and whether you completed the planned fast.
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.
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.
