Why is 16 hours the magic number for fasting?

The 16-hour fasting period is popular as it allows for significant metabolic benefits without being overly restrictive. This duration is long enough to promote fat burning and reduce calorie intake while still fitting into most people’s daily routines, as it typically includes sleeping hours ( 34 ).

Does lemon water break a fast?

Lemon water generally doesn’t break a fast as long as it’s consumed without added sugars or sweeteners. The minimal calories and carbohydrates in a small amount of lemon juice are unlikely to significantly impact the fasting state.

What foods won't break a fast?

During a fast, consuming zero-calorie beverages such as water, black coffee, or plain tea is ideal. These don’t provide calories, thereby maintaining the fasting state. Avoid any foods or drinks with significant caloric content to ensure the fast remains intact.

Does sleeping count as fasting?

Yes, sleeping counts as fasting. The hours spent sleeping are part of the fasting period, which makes it easier to reach the desired fasting duration, such as the 16-hour window in the 16:8 intermittent fasting method.