What is Intermittent Fasting?

Intermittent fasting is any of various meal timing schedules that cycle between voluntary fasting (or reduced calorie intake) and non-fasting over a given period.[1][2] Methods of intermittent fasting include alternate-day fasting,[3] periodic fasting, and daily time-restricted feeding.

Intermittent fasting is a time-restricted form of meal scheduling to reduce caloric intake by voluntarily abstaining from eating during defined periods. Various fasting methods include daily feeding during restricted time windows, alternate-day fasting, and periodic fasting.