What IS fasting anyway? The dictionary definition of fasting is “to abstain from all OR some kinds of food or drink.” There are 4 main types: 1. Time-restricted eating (TRE) - you restrict the hours you eat in a day. 2. Whole day fasting - you don't eat anything in one day once a week. 3. Alternate day fasting - you eat food one day and the next you don't. 4. Short-term intermittent fasting - you fast with no food for 2 or 3 consecutive days. An example would be the 5:2 Diet (2 days of fasting and 5 days of regular eating). #fastonyourownterms