How do you do intermittent fasting? Many IF'ers consume for 8 hours a day, fasting the other 16 hours. How much time do you need to quick for intermittent fasting? You could begin with a 12-hour rapid and also function your means to 16 hrs. The majority of IFer's consume from 10-6, 11-7, or 12-8. It does not matter exactly what eating window you ch