There are several ways of doing intermittent fasting. In some, you eat either very little or nothing at all. The 5 most popular kinds of intermittent fasting are:
12 hours of fasting: This kind of fasting is the simplest one, where a person needs to adhere to 12 hours fasting window every day. The easiest way to follow this fast is to include the period of sleep in the fasting window. You can choose to fast between 7 p.m. and 7 a.m.
The 16/8 method: This is also referred to as the Leangains protocol. The 16/8 methods involve skipping breakfast and restricting the eating period to 8 hours. In this eating window, one can fit in two, three, or more meals. You just need to be careful about your calorie intake.
Eat-Stop-Eat: This type of fasting involves shunning calorie intake for 24 hours, once or twice a week. Only water, coffee, and other zero-calorie beverages are allowed during the fasting period.
The 5:2 diet: In this method of intermittent fasting, one has to consume only 500–600 calories on two non-consecutive days of the week. In the remaining 5 days, they are allowed to eat normally.
Alternate day fasting: In alternate-day fasting, one has to fast every other day. This type of fasting is quite an extreme form of intermittent fasting and may not be suitable for beginners or for those suffering from chronic diseases.