Intermittent fasting (IF) is an eating pattern that cycles between periods of fasting and eating. It doesn't specify which foods you should eat but rather when you should eat them. In this respect, it's not a diet in the conventional sense but more accurately described as an eating pattern.

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Intermittent fasting, also known as intermittent energy restriction, is an umbrella term for various meal timing schedules that cycle between voluntary fasting and non-fasting over a given period. Three methods of intermittent fasting are alternate-day fasting, periodic fasting, and time-restricted feeding.

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Before you decide to try this eating pattern, consult your doctor.