Fasting, when there is no food consumption and you are limited to liquids like water and black coffee, can be approached a couple different ways. One is to focus on time restricted eating where you limit food to within certain times during the day. Popular options are 16:8 and 20:4, with the first number representing the hours during a day you don't eat. The other is to option is to do alternate day fasting, which is fasting from a weekly approach instead of daily. Fasting can lead to having more energy, weight loss, and usually leads to healthier food choices.
