Does Black Coffee Break a Fast? Intermittent Fasting & Low-Calorie Coffee Guide (2026)
If you practice 16:8 intermittent fasting, OMAD (one meal a day), or a circadian fasting window, your morning cup of coffee is often what keeps you energized until your first meal. But does black coffee break a fast? The short and scientific answer is no—plain black coffee will not break an intermittent fast. In fact,…