Black coffee won't break your fast

Drinking moderate amounts of very low- or zero-calorie beverages during a fasting window is unlikely to compromise your fast in any significant way. This includes drinks like black coffee.

Can I have black coffee while fasting?

Black coffee does not break intermittent fasting, as long as there are no additives. Studies have found that low-calorie or zero-calorie coffee beverages do not affect IF's health benefits. However, other types of coffee may have a detrimental effect on your fast.

What can I put in my coffee while fasting?

As a general rule of thumb, if you drink something with less than 50 calories, then your body will remain in the fasted state. So, your coffee with a splash of milk or cream is just fine. Tea should be no problem either.