What breaks a fast?
Quick answer
Anything that provides meaningful calories, sugar, protein, or fat usually breaks a strict fast.
Step by step
01 Define strict vs practical fast.
02 Check calories and macros.
03 Track gray-area choices so your rule stays consistent.
The longer answer
For a strict intermittent fast, food, milk, cream, juice, protein powders, broth, alcohol, and sugary drinks should be treated as fast-breaking. For a practical fast, zero-calorie drinks are usually fine, but sweeteners are a personal gray area.
Tip
Create a personal 'fasting-safe' list and do not renegotiate it while hungry.
Common mistake
Thinking one bite or sip never matters; it may not ruin progress, but it ends a strict fasting window.
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.